Find cheap flights from Washington Dulles Airport to Porto

IAD - OPO

Find cheap flights from Washington Dulles Airport to Porto

Round-trip
Economy
Washington (IAD)
Porto
Wed 11/25
Wed 12/2
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to Porto
There are travel restrictions to Porto. Learn more
Stay informed and receive email updates for when travel restrictions ease for Porto.

Good to know

Low season

February Best time to beat the crowds with an average 24% drop in price.

High season

November Most popular time to fly with an average 29% increase in price.

Average price round-trip

$911 (avg. price over the last 2 weeks)

Good deal round-trip

$622 or less

Good deal one-way

$441 or less

When to book flights from Washington Dulles Intl to Porto

Estimated round-trip price
Average price per month

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $441 or less one-way and $622 or less round-trip.
  • High season is considered to be October, November and December. The cheapest month to fly is February.

FAQs for booking Washington Dulles Airport to Porto flights

Are there Porto travel restrictions currently due to Coronavirus?

How long does a flight from Washington Dulles Airport to Porto take?

Which airlines provide the cheapest flights from Washington Dulles Airport to Porto?

Do I need a passport to fly between Washington Dulles Airport and Porto?

What’s the cheapest day of the week to fly Washington Dulles Airport to Porto?

How does KAYAK find such low prices on flights from Washington Dulles Airport to Porto?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Porto?

What is the Hacker Fare option on flights from Washington Dulles Airport to Porto?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Porto?

Top 5 airlines serving Washington Dulles Intl to Porto

Scores according to KAYAK customer reviews

8.0
SWISS
Overall score based on 8,990 reviews
8.2
Boarding
7.8
Comfort
8.6
Crew
7.7
Entertainment
7.9
Food
Airline reviews

Pros: "The in flight service was fantastic. The attendants were friendly and always smiling. The pilots flew the plane with Swiss precision. I had an economy ticket and they fed us twice and had at least six beverage passes to keep you hydrated. A blanket, pillow and ear buds were provided as part of the seat. Norwegian Air does not even cover a glass of water. They are pathetic. We will travel with Swiss Air again."
Cons: "Internet service is invoiced by the megabyte and not the flight. For flights of this duration, a lump sum is a better idea."

Pros: "Again staff was very friendly and helpful."
Cons: "That since it was a shorter flight no tvs."

Pros: "The crew was very professional and helpful. If you travel Business Class it is very pleasant. But if you are traveling Economy the boarding management and economy seats suck! Many people were complaining about how narrow the economy seats are on the A320/330 aircraft."
Cons: "Swiss has finally done it! If you are a person who is large framed, around 225 lbs or higher you will not fit into their economy seats. I'm quite athletic and not obese but large framed (ex- football player), I could not sit squarely in the seat as my hips were severely pinched. Misery :("

Pros: "The AC was working well during the flight. Food was so much better than United and crew was very nice and helpful."
Cons: "The seats in economy class are horrible, I had to get up every hour for a short stretch. The entertainment system remote control was very sticky, quite disgusting. Good think I carried some disinfecting wipes."

Cons: "No entertainment. Food was bad."

Pros: "Mmmm"
Cons: "Superrrrrrrrrrrrrrrrr"

Cons: "Lost our bags"

Pros: "the CREW WAS FRIENDLY AND CELEBRATING EASTER WITH THE GUESTS"
Cons: "THE FOOD WAS ADEQUATE, GIVEN THAT WE WERE ON AN AIRPLANE"

Pros: "The flight was good. Fairly good food"
Cons: "Made me check my bags on my way back for no reason"

Pros: "Fast flight. Good service from luggage checking to landing."
Cons: "Way too spicy beef chili. Confined space on airbus."

Pros: "Nothing stood out"
Cons: "Nothing Stood out"

Cons: "Despite listing items desired for breakfast per seat assignment, flight attendant still got it wrong."

Pros: "I was very pleased at the flight crew, the food and entertainment. We had a really fast connection in Zurich and our luggage made the connection, which was a big relief."

Pros: "Best flight for a long time. great service and entertainment."
Cons: "I was unable to order vegetarian meal before the flight. This also a KAYAK / VAYAMA issue - you can not pass the info about special meal to the airline and Swiss seems to require that you order through them in order to specify such details. You should improve this."

Pros: "I treated myself to Swiss Business (for a second time) for this trip and it was terrific. From the comfortable seats, the fabulous dinner, the outstanding Swiss staff from the baggage check to the wonderful flight attendants, the flight to Zürich and the return trip to Boston was amazing! I cannot say enough good things about Swiss. I would love to be able to fly Swiss Business again when I travel to Zürich in September 2019."

Pros: "787 is an excellent plane and I could sleep a little"
Cons: "I was boarding at gate C4. Doesn't anyone get it ! Using the word "bomb" in airports is a big no-no however C4 is OK? Even a little old lady knows what C4 stands for."

Pros: "Proper business service all the way."
Cons: "The seats did lay flat but were hard and uncomfortable in the down position. The breakfast barley was completely unappetizing."

Pros: "Quick flight"
Cons: "Small plane with very uncomfortable thin hard seats. Could feel the ride on this plane. Food not great. No entertainment on board."

Pros: "The staff was courteous and effective. The pilots made up time after waiting for a few connecting passengers."
Cons: "The food was edible but not up to the usual Swiss Air standard."

Cons: "I have just had the most unpleasant experience with Swiss Air and feel that anyone on FB should be very careful when dealing with this airline. I am a Gold Member of Star Alliance for more than 20 years and have flown dozens of times on Swiss and would expect courtesy and consideration in return for my loyalty to their airline. Their flight from Hong Kong to Zurich leaves at 00:15. I mistakenly booked this for Nov 9th instead of the intended late evening of the 9th which then turns out to be Nov 10th. When I discovered my error, I called Swiss at least six times to explain my error and ask if my son could stand by for the same flight on the 10th or even apply the amount to rebook the same flight the next day. ZERO flexibility or consideration. Missed flight, lose entire value. Start from scratch. Astonished that an airline that claims to be serving their customers would treat me this way. I travel through Europe at least 6-10 times a year from Asia. I will now route through Frankfurt, Munich, Paris, London, Vienna, Instanbul or even Moscow before ever going through Zurich again. I encourage anyone making travel plans to be very careful when considering flights with Swiss Airlines. Perhaps this treatment of a loyal customer explains why they went through bankruptcy already once."

Pros: "Flight is conformable.. Crew was fine."
Cons: "experience at the Zurich airport was not good. They checked our passports 3 times before we got to our gate. Swiss airlines should account for these things when they give options for the connections. we had about and hour and half layover and did not even have time to have coffee or anything before a 9+ hour flight. We just ran from one flight to another and barely made to our flight.."

Pros: "Smooth flight"
Cons: "I ordered a kosher meal and did not get it. The seats are very uncofmfortable. When the one in front puts their seat back it goes almost in to the face of the one behind."

Pros: "on time and got us there on time."
Cons: "untrained staff waking people up no flexibility with ordering GF dinner late"

Cons: "While I was on line to board, a flight assistant came to me and asked me if I was flying by myself. When I said yes. they upgraded me to business class. I boarded the plane and took my seat. Shortly before taking off, another flight attendant came to me, told me they made a mistake, and sent me back to my original economy seat (while I was holding my new business boarding pass that they gave me). When I told them they should remedy somehow their mistake, they said they did not have any other extra seat in business and that there was nothing they could do. They did not apologize. They were quite unprofessional and rude. I fly often and I have never experienced something so unprofessional and rude. Alitalia is far better than Swissair in terms of professionalism and of politeness. I will always discourage anyone from flying Swissair. Worst company ever."

Pros: "Nice staff"
Cons: "Waiting in line in NYC for take off was about 50 minutes. Small seat space with annoying passengers who watch movies all night with bright screens or push and press my seat all the time. Earplug is uncomfortable, breakfast is plain, hot chocolate is horrible. It was a full flight and we even lost my daughter's cardigan."

Pros: "When we landed"
Cons: "Everything else..."

Pros: "A+."

Pros: "Very impressed with snack: good tasting quiche with biodegradable packaging and no plastic utensils. Thanks for being so green! On time flight."

Pros: "We were worried based on negative reviews on SWISS we had read prior to our trip, but they were WONDERFUL!! We flew coach from MIA to CRETE, two stops and 13+ hours of flying. The seats were as roomy as coach gets, but comfortable, reclining further than Delta or AA in my opinion. The food, drinks and snacks never stopped and were tasty!! Including a delicious Swiss chocolate a the end of your flight! They were so attentive! The attendants were all kind and polite. In fact, we had someone sit in front of us on our flight home who culturally didn't bath/wear deodorant and VERY malodorous and we asked the flight attendant if we could move. As soon as everyone boarded and she found two open seats for us, she moved us right before take off and we had a wonderful, great-smelling 10.5 hour flight!! LOL"
Cons: "There seems to only be 4 (plenty) bathrooms right in the center of the coach area of the plane, but with the flight attendants constantly serving drinks and food, you really had to time it so you could get to the bathrooms when they weren't in the aisles. Trust me though, this is hardly a negative and I will happily fly SWISS over and over!!!"

Pros: "Great customer service."
Cons: "Breakfast was a strawberry yogurt, orange juice and a croissant. Sugar free options ie. Eggs, rye or whole grain bread are a few examples of sugar free breakfast items that could be provided."

Pros: "See above"

Cons: "The crew at the check-in was rude, confused, and ignorant, and flight attendants were forgetful and ignorant."

Pros: "Crew"
Cons: "Passengers crowding the lane"

Pros: "Overall this was an average international flight. But the crew and food made up for all the short comings. One of the most amazing crews I have ever experienced....and food was surprisingly delicious...even ice cream. they visited frequently with water and tea. We're friendly accommodating and fun everything that you want in a crew."
Cons: "Cramped coach seats and pretty boring movie selection.The double checking and multiple lines at boarding was a ridiculous but perhaps it's required"

Pros: "Everything"

Cons: "There was a supposed difficulty with my entry in Europe when I tried to Check into Chicago. I thought that I had to cancel my flight. Swiss air representatives had to do much consultation, which took nearly an hour, while I was standing there the whole time. At the end, I was thanked for my patience and told all should be well and not even given a small upgrade for the distress this caused me. Traveling is disagreeable in general now, and personally, even moreso after this episode."

Pros: "Can't think of anything we didn't like. All the attendants were very nice, always smiling and helpful. It was great, will fly with Swiss again for sure."
Cons: "Can't think of anything."

Pros: "Flight attendants were sympathetic and helpful."
Cons: "Delay after the pilot ensured we would arrive on time with the delay."

Cons: "Delayed boarding due to overheated plane, when we did board it was still warm and we had to sit longer due to other mechanical issues. Wish they would have waited for all issues to be resolved before boarding."

Pros: "Crew was great, polite and pleasant. This is the only good thing about the flight."
Cons: "The agent at the check-in had no clue what he was doing. He had to ask his neighboring agents a dozen questions to check us in (4 passengers, 3 bags and 2 car seats). On top of that, his whole demeanor was condescending, treating us as if we had never flown an airplane before. We are big are traveling light, so we had 2 small suitcases, small enough that we never have to check them in for the US domestic flights. I asked the check-in agent if the small ones were needed to be checked in or if they could be taken as carry-ons. He made a big deal that they were too big and had to be checked in. But when we boarded the plane, we saw that about a quarter of the carry-on bags in the plane were as big as our small suitcases! We were in row 30+. The leg room was the narrowest I have had in all international flights I flew in. Having longer than average legs, it was pure torture for the duration of the overnight flight. The best part of the dinner they served was the croissant - that should give you an idea. I don't think I would voluntarily choose Swiss Air again."

Pros: "Good service... Quick boarding"
Cons: "Older plane, seats too narrow and short for 11hr flight. Bathrooms are TINY even by airline standards. Entertainment system has lots of choices but screens are low quality."

Pros: "Great entertainment center. Complimentary alcohol and snacks. All this masks the torture of sitting in a way -too-small seat for 11 hours plus."

Pros: "I liked nearly the entire experience. The food was first rate. The crew was friendly & helpful. The seats were so comfortable and the entertainment was plentiful."
Cons: "The boarding process and distance required for transfer was daunting and complicated. Many of us feared we would miss our connection. The lines were excruciatingly long and caused delays that were unnecessary."

Pros: "No delays at all. Couldn't ask for more."
Cons: "Screaming babies."

Pros: "Loved the entertainment options, and pretty Good food!"

Pros: "Decent food, smooth flight, good information from the cockpit regarding connecting flights"
Cons: "The arms on the plan do not fold up completely. This makes it hard to get comfortable on my 8 hour flight - particularly since the seat was open next to me and I could not stretch out"

Pros: "The entertainment system"
Cons: "Direct answer is "nothing"; however, it should be noted that this not a Swiss Air flight. It was a code share on a United Airlines flight."

Pros: "Nothing"
Cons: "Flight cancelled. Two agents at the gate were not enough to handle 300 passengers. Total lack of compassion and poor comunications. Ended up calling Swiss reservation line and after 90 minutes on the phone was confirmed on LH. Spent 12 hours in munich, to arrive in TLV and realize that despite the assurances the luggage did not arrive leaving us with no cloths"

Pros: "Direct flight"
Cons: "3 hour delay Noisy cabin due to loud engines One could hardly heard the movie audio from the Headphones during movie viewing even after they were replaced"

Pros: "Service was great, very polite crew. The food was so far the best comparing with other airlines I flew with. Planes were clean."
Cons: "The flight arrived with delay in Istanbul. The connecting flight was delayed as well. Hopefully I won’t experience that on the way back. One of the passengers said that flights are always delayed when arriving to Istanbul waiting for gates."

Pros: "Easy booking on Kayak! Good service overall."
Cons: "Seats were uncomfortable, it was really hot! Not enough air conditioners."

Cons: "Seats are too cramped and not enough leg room. Plus our seats did not recline which is painful on a 10 hour flight. The flight attendants and front desk workers had an attitude as well."

Pros: "Crew were polite and helpful"
Cons: "Seats were especially cramped and tight and leg room was uncomfortable and I am a short person."

Pros: "Everything- hot moist wash rags & overnight kit were luxury touches."

Pros: "Friendly airline and super organized and efficient from start to finish. By far the best airline our group has flown with!"

Cons: "Seats were horrible - I've never been so uncomfortable on an international flight. Also, seat was broken and I couldn't push it back for sleeping. Flight attendant tried to help be but seat was broken"

Pros: "Everything was perfect, the hours from Washington to Instanbul were perfect for night sleeping, the seats were comfortabl enough for sleeping, I didn't eat the late night dinner but the breakfast was good."

Pros: "Great service, polite."
Cons: "A bit slow serving food."

Pros: "Entertainment, flight times, price, new plane, good luxury, in between meals food offering"
Cons: "Cleanliness of bathrooms, seat room, bumby landing, no involvement from the pilot to the passenger it was like he was too good to speak to passengers and update on weather conditions, welcome greetings, landing details etc. overfilled flights."

Pros: "Everything"

Pros: "El servicio del personal a bordo fue muy bueno. La comida me pareció de buen sabor. El boarding se puede hacer desde el lounge."
Cons: "El chreck in en el aeropuerto de IAD no me gustó. Abre a las 7:10 para el vuelo de las 11."

Pros: "Service was exceelent and all crew staff were professional and friendly and courteous."

Cons: "We end up spending almost 1,200 use extra to reach Washington and return to Yaounde."

Pros: "The entertainment and food choices are great, and staff is kind and ready to help."
Cons: "The line to check in & get our boarding passes was ridiculously long -- it took us about an hour of just waiting in line before even getting to security."

Cons: "the employees at the check in booth were so rude and unhelpful. I needed a wheelchair because I had a very bad backache, but they refused to help me and they made me wait standing up in line for over 2 hours. It was a very painful experience."

Pros: "Turkish Airlines remains my favorite - boarding process is organized, seats are comfortable, food is good, and crew is friendly and helpful."

Pros: "I liked the food and the Entertainment on board. The board crew was friendly and had always a smile."
Cons: "The crew wasn't able to speak in German, even though they spoke perfect English."

Pros: "Loved the entertainment center and options. Loved the frequency of beverage service. The slippers and eye cover for sleeping."
Cons: "Nothing. Everything was great"

Pros: "In-flight service puts US-based airlines very much in the shade - welcome on board, attentiveness, food and drinks."
Cons: "Chaotic check-in process."

Pros: "I liked everything"

Pros: "I loved the bendable headrests. Olives and cheeses are different airplane food and really nice. Plentiful blankets and pillows."
Cons: "They didn't have any child-sized headphones available for my daughter."

Cons: "I booked my flight with Turkish Airlines for June 28th at 11:05 pm. A few hours before my flight, there were bombings in the airport in Istanbul, which was where I was flying into. I tried for hours to contact Turkish Airlines and their phone was disconnected. I could not reach anyone to try to re-schedule a new flight or to ask if the flight was going to be re-directed. I received no information and ended up having to book a new flight for the next day. After my flight had already left Turkish Airlines posted on their website an alert. I am shocked that it took so long to post any information and I am very upset that I was unable to reach customer service. I will NOT be choosing this airline to fly on again."

Pros: "Service was outstanding!"
Cons: "I have no complaints!"

Pros: "The company gave us a hotel for the layover."
Cons: "Seats uncomfortable"

Cons: "Absulotely nothing."

Cons: "Rude stewardess"

Pros: "This was my first time flying with Turkish Airlines, and I had a great experience. I travel internationally a lot and it has been by far the best airline I have been on. I love flights that give you a hot towel when you arrive, so that was a big plus in my book. The flight stewards were so helpful both on and off the flight. The food was delicious. Movie selections were freat ad well."
Cons: "Nothing."

Pros: "The planes were clean and staff really helpful. The actual flights were great."
Cons: "At Istanbul the staff in the airport were confused about where the gate was and we missed our flight and then we had to purchase new tickets. And they did not honor our original tickets. That was almost 900 dollars gone because they would not honor our tickets. I am hoping for a refund."

Pros: "Crew was very attentive, complete punctuality, everything of high quality."
Cons: "no information o.n frequent flier program"

Cons: "Bathroom very dirty with odors!"

Pros: "Liked the hot towel, good service and gift bag of toiletries - unique among airlines for Economy passengers."

Pros: "Food was good. Service was excellent."
Cons: "Nothing."

Pros: "Excellent flight experience"
Cons: "Delayed arrival meant my luggage didn't make connecting flight. Bad!"

Cons: "There is a sthg in the food which was plastic.and it could be really dangerous for me.I showed the hostes and said they could change in flight from istanbul to izmir."

Pros: "Food was great as well as entertaiment."
Cons: "I'm 6.2 There is no leg room for tall people. It was very uncomfortble 10 hours red eye flight. Crew was just ok."

Pros: "The food was good, as was the service."
Cons: "Delays, both at Dulles, as well as in Istanbul."

Pros: "Other than what I've mentioned below, everything was great."
Cons: "It was a pretty physically uncomfortable flight. My seat wouldn't recline even a tiny bit and it was a 9+ hour flight. The flight attendant tried to help but was unable to get it to move either."

Pros: "Care and attention the flight attendance showed."

Pros: "The crew and food were excellent! Movie choices were plentiful!"
Cons: "Travelling with my 70yr old mother.. Man sitting in front of her would recline and his head was practically in her lap. Neither of our seats reclined so it was upward bound only for almost 11hrs."

Pros: "Comfortable. Excellent service"

Pros: "Had a one hour delay without justification,but ended up landing in Douala first before Yaounde. Arrived at 4:30 am instead of 12:005am. Lost my bag up till now not seen."
Cons: "The crew, was rude to passengers with kids"

Pros: "The attendants were courteous and proficient. Even when they were being elbowed as they walked past, smiling and friendly. I will try to fly Turkish again."

Pros: "Top of the line service!!"

Cons: "Seating was terrible. My seat was broken."

Pros: "The flight was smooth, the crew was great, as was the food. I am never comfortable sitting on a plane for 9 hours. The overall experience was very positive."
Cons: "Crsmp seating,"

Cons: "No food or drink was served nor was there a clear explanation given by the crew. Attendants were brusque but efficient. Overall I felt a bit like I was inconveniencing the airline by taking their flight."

Pros: "Once on board, the service is very good!"
Cons: "Very long lines and long waiting time to check in."

Pros: "Everything was very good"

Pros: "Food was pretty good and the inflight movie selection was robust."
Cons: "Flight was canceled due to weather but the cancelation wasn't communicated until I actually arrived at the airport. This isn't customary. Most airlines inform travelers ahead of time. Rescheduling the flight took two days and multiple calls to their customer service number which wasn't receiving calls for a full 24hrs due to call volume. Was finally placed on a new flight but the flight had a 24hr layover in Istanbul (my previous flight didn't), forcing me to pay out of pocket for food and lodging in Turkey."

Pros: "Crew from Washington to Cancún were extremely rude"
Cons: "Smile"

Pros: "They had hand sanitizer wipes upon entering plane as well as one time use sanitizer pack included in their snack bag"

Pros: "The crew was very attentive and had great personality. They anticipated any needs we had."

Pros: "Crew was awesome"
Cons: "Nothing"

Pros: "Quickly moving through the airport."
Cons: "Take out old planes. It was really run down."

Pros: "Some Delta planes have headrest Screens. Both my flights did and love watching movies they offer at eye level then to use iPad and have to bed down to watch. You can’t tell why planes have seat back screens but sure glad my flights dis"
Cons: "Snack choice was only two items Cheezit or Cookies. Neither sounded good to me."

Pros: "The plane was nice"
Cons: "I’m still sitting in Minneapolis so I would have liked to be at my destination. And I had to pay for the overnight accommodations."

Pros: "Entertainment was awesome. Although airlines are stingy with snacks, Delta had a good overall selection and very generous."
Cons: "Something that cant be changed overnight, however, there should be a little more Aisle space for folks pass through as my shoulder was getting beat up after every passing person and cart."

Pros: "Crew was friendly."
Cons: "Wish the seat was more comfortable. Landing was jittery and bumpy."

Pros: "The flight attendant from IAD to MSP called Bernadette was wonderful!"

Cons: "Delayed"

Pros: "I am usually happy with Delta."
Cons: "Huge smelly person invading my space. Disgusted by his hot sweat on my leg. Used up 10,000 miles and paid too much (watched the fare go down several hundred dollars) and ended up with a middle seat. Not happy."

Pros: "Flying first class was wonderful. Great crew. Good food."
Cons: "Can’t think of anything."

Pros: "Super comfortable seats. Lots of movie options."
Cons: "Food was not very good"

Pros: "Flight was smooth, arrived early..crew was prompt and courteous."

Pros: "Crew and entertainment options were great."
Cons: "Cabin was very loud, with jet engine noise. Could not block it out. Seats were not comfortable."

Pros: "Standard Air France flight. My wife and I like the Airbus 380."
Cons: "The flight left two hours late. Apparently this happens a lot with this flight these days because it's an Airbus 380 coming from Paris to Dulles and turning around. The incoming flight was two hours late, so the departure was late. Our arrival in Paris was late. We made the flight, but our luggage didn't. Our return flight from Paris to Dulles was half an hour late because of people from connecting flights. We arrived about 30 minutes late, but no big deal (unless you had a connection)"

Pros: "Fly attenden alwas with a beautiful smile"

Cons: "The baggage drop attendant was very unhelpful when I asked if she could help me sort out an issue (when I checked in online for the second leg of my trip, i paid for my bag then but they wanted me to pay again for my first flight) and just dismissed me and said she couldn't help, making me pay again for my bag. First time I've ever had an unpleasant experience with Delta."

Pros: "Nothing particularly stands out. I did arrive safely."
Cons: "First class did not come with lounge access? Drinks were not cold. Bathrooms were falling apart and came with a disgusting odor. Time to retire these aircrafts."

Pros: "Flight attendants were nice based on the situations beyond their control."
Cons: "Flight was delayed for about three hours, due to mechanical issues with the second engine not starting. We sat on the the plane for over an hour and half. Some people that missed their connection flights were offered hotel stay. Others that had no connection flight was not offered anything for the several hours of delay that occurred."

Cons: "Tv"

Pros: "The chekc in person was very helpful."
Cons: "The plane was too hot and the pilot did not accommodate the passengers request. More than just me made the same request."

Pros: "That I landed safely"
Cons: "1st class was horrible."

Pros: "Great selection of movies to watch."
Cons: "The seat-back display screen could use some updating/improving. Also, the earbuds weren't very good."

Cons: "I have traveled with my luggage plenty of times through airports and the flight from washington to jacksonville, my luggage came back to me cracked and broken. I was surprised that Delta handling was worse than any of the cheaper flights I normally take and will not be checking any baggage with Delta again."

Pros: "Great and friendly crew"
Cons: "baggage rules, check in with baggage, change fee for flight when it was not customers issue that caused the 5 min delay! Unable to reach reservation desk on line or via phone (neither was the gate agent)"

Cons: "Seeing as I’m still waiting for my flight, more than five hours later I am not inclined to rank it highly. This airport is an embarrassment and I will try my best to never fly Delta again. Weather is no excuse for this."

Pros: "My flight was canceled but Delta rebooked me on a flight leaving at about the same time as my original flight, which arrived just a little later than originally anticipated"
Cons: "My original flight was canceled"

Pros: "Customer service was great"

Pros: "Our flight attendants were lovely people specifically the first class attendant and he was humorous and witty, polite and friendly trying to make our christmas eve late night flight to be enjoyable."
Cons: "When we touched down in a blizzard we were told there was no jetway available and we had to climb down an icy ladder to walk probably 1000 feet on black ice barely seeing where we were going and at least one person fell and overall it was just very unprofessional and not the quality of service I expect from Delta."

Cons: "Delayed two hours"

Pros: "Got to my placs"
Cons: "Lol put the two fattest people next to each other"

Pros: "The fact that there were no snakes on this plane :-)"
Cons: "Same issue... there were no snakes on the plane :-/"

Pros: "Entertainment"
Cons: "Late flight without any compensation for our trouble"

Pros: "Flight attendants and cookies. That's it."
Cons: "We left DC late because of Delta's inefficient boarding process. We landed in Atlanta late. Our flight to Sioux Falls left early, without us. My pregnant wife and I made it to the gate 4 minutes before the scheduled departure and they told us the plane was already gone and there was no way for us to get on the plane. Our bags did make it to Sioux Falls, so my wife didn't have her prenatal vitamins, , we had no clean clothes and we were forced to spend the night in Atlanta. The saddest part of yet another terrible experience with Delta was that they offered us a "discounted" room at a terrible Howard Johnson for $72. I looked online and the same hotel was $65 to book on Kayak. So basically Delta was trying to scam us after they screwed us. Thanks Delta! Instead we paid $200+ to stay at an airport hotel. Every time I fly Delta I regret it, yet occasionally I get forced to take their awful airline to get somewhere I need to go. It never fails to add another bad Delta experience to my long list of failings from this SAD!!! airline."

Cons: "There delay"

Pros: "Wonderful experience with the staff."
Cons: "No complaints."

Pros: "The crews were very friendly and everything went as planned. It was a nice flight."

Cons: "I didnt like that my flight was canceled and rebooked for no reason. This created me big problem in Athens that they couldnt find my ticket in delta. Also I didnt like that i had to stand and wait for 3 hours in the line because my flight was canceled but no one could let us know if there gonna be any flights within the day. I slept in the airport because i couldnt find a hotel to spend the night close to the airport. They were all full and i had no time to find one since I was waiting there for 3 hours with no informational. I slept on the floor and delta didnt even offer us a blanket. That was my worst trip ever."

Pros: "The flight was smooth and the food selection was surprising delicious. The crew was very attentive."
Cons: "The leg room was much less than the last time I flew Virgin (booked via Delta) and made for an uncomfortable trip. Could not sleep as a result. If you're tall like me you'll need to book a higher seating category."

Pros: "Everything was great"
Cons: "Nothing everything was fine"

Cons: "paying extra for leg room and checked bags"

Pros: "Efficient boarding. Friendly service."
Cons: "N/A"

Cons: "This flight was on a Transavia codeshare with Delta and a real downer after coming from a Delta One business class segment. An uncontrolled mass boarding, crammed in seating, no amenities and charges for a drink of water made this a pretty crappy flight. The crew was nice though."

Pros: "Got delayed due to the computer shutdown"

Pros: "Nothing"
Cons: "Being scammed by the Chinese, China Southern"

Cons: "After a grueling 14 hour flight back to the states from Asia, got notification that my Delta flight was further delayed an additional 3.5 hrs from the layover of 2hrs, so I was at the airport for a good part of the day and did not get home till midnight. Altogether 24+ hrs of no real sleep. To add insult to injury, a Delta representative called and apologized, offering a $100 voucher or gift certificate. Raised expectation that they might actually do the right thing. I then received a Delta email that says "Your day just got better", except there was nothing but ads and enter to bid for things. Overall bad experience when I really needed them to get me home on time."

Pros: "Seriously, all was great. Usually is. Love Delta"

Pros: "I am 6'6" 300 pounds ... So I regularly book first class for trips over 2 hours in length ... Delta remains my #1 choice for both value and overall experience in first class. The difference between Delta and all other domestic carriers is just overwhelming. United and American/US Air could learn a lot from Delta. I could have flown this trip direct on United, but chose to fly through Atlanta on Delta for less money and a better experience from the baggage check to the gate to the in-flight experience."

Pros: "Not enough restrooms the food was not the good mor"
Cons: "More choices for food seats not comfortable too narrow no space"

Cons: "They told us there were no earbuds so recommended using our own. Our children had left theirs at home so they ran to get a $20 pair nearby. But the the plane DID have the buds; what we did not have were blankets — the crew said none were to be had."

Cons: "2 hours Delayed and operated by United ..."

Cons: "Seats felt like Adirondack chairs..hard and no lower back support."

Pros: "The seat 16A is very comfortable and spacious. Most of the hosts were friendly and helpful."
Cons: "My screen did not function well and sound was very poor. I had to have my computer 'rebooted' two times. The second time was done by a gentleman who was a bit sarcastic when I asked if he could help me, as I had waited 20+ minutes for the help to get it going again. You need to update your system!"

Pros: "Nice Biz Class with typical empty center seat. Pleasant FAs."
Cons: "No complaints."

Pros: "The crew was excellent and always there to help. They managed a 15min boarding due to being well organized."
Cons: "I’m 5’7 and my knees were touching the seat in front of me- there is no way to be comfortable. You pay an extravagant amount of money and get squished in there like sardines. It’s disappointing."

Pros: "Treated passengers well - even those of us in steerage. Food was excellent and entertainment options plentiful. Coach is still coach, and it’s hard to settle in for a nap. So, if arriving rested is important to you, spring for business class."

Pros: "Underseat AC power and USB power was the highlight of the trip."
Cons: "Food portions were tiny. Totally dehydrated at the end of the flight, and water was passed out in 100 mL servings. Insufficient space under the seat for a backpack."

Cons: "Missed this flight because my first flight was a cancelled flight, missed intercontinental connecting flight."

Pros: "Diner"
Cons: "Was told that an upgrade to premium economy entitled us to lounge privileges. Were told by attendants that we had to pay an extra $35. each. We had $6.30 subs from potbelly."

Pros: "I wasn't expecting free in-flight movies and meals, which were very welcome"

Cons: "Seat pocket was damaged and couldn’t be used. Food was at best mediocre. Old salad, old bread, no salt with warm meal."

Pros: "Probably one of the best economy experiences I have had in a long time. The staff was very friendly and professional. Also one of the first times that i was actually comfortable in an econo seat. Hats off to Lufthansa!"

Cons: "Seats very crowded. No leg room at all."

Cons: "After usual perfect service from Luftahansa, I noticed that my lagguage was opened and destroyed."

Pros: "Timely, friendly, clean plane"
Cons: "Food was bland!!!"

Pros: "Everything on the flight was very efficient and organized—the boarding process, the excellent and pleasant service, the food, and the entertainment selections. Thank you for making a long flight enjoyable."

Pros: "A couple of flight atrendants were civil"
Cons: "Gate was changed three times immediately prior to departure. Plane was BERY small. Food was awful."

Pros: "Impecable service. Even worth flying through FRA."
Cons: "Nothing. Everything, as always, great. Keep it up."

Cons: "This particular flight was delayed beyond reaching the next sep,so we have to rebook our flight threw Chicago in uncomfortable hurry."

Pros: "Boarding was made seamless. Seating legroom always seems to be better then others I have flown with. Food seems to be better too. The flight crew is very friendly!"

Pros: "new clean aircraft."
Cons: "no breakfast."

Pros: "This was actually a United Airlines flight connecting to a Lufthansa flight in Munich. The crew was friendly and thanked us individually for flying with them as we prepared for landing."

Pros: "Everything was amazing Very pleased!"
Cons: "Good choice entertainment but system is slow to respond and crashed on a few occasions"

Cons: "It was a transatlantic flight in coach. There is no way to make that a pleasant experience. Entertainment system was down. Ran out of one dinner option."

Pros: "The flight attendants were very friendly and attentive. The flight was very smooth."
Cons: "My seat back was not easy to keep in the reclining position."

Pros: "great and pleasant service, caring and helpful, frequently offered beverages, delicious vegan option, great movies selection, not much turbulence, overall like Lufthansa the best: reliable, on time,"

Pros: "Best crew ever. By far most friendly staff and excellent service."
Cons: "Nothing that I know"

Cons: "This was a united flight. The personal was not helpful, only in helping me communicate with the airport in Rome to change my flight. I had to pay 97 euros for this change. I am upset and think it is not fair that I need to pay for a problem united had with their flight. I also think star Allience failed as they were not able to resolve the problem with their partner airlines."

Pros: "When we fly Trans Atlantic, we always hope it will be with lufthansa! Sometimes they use united as a carrier and it us never as good as lufthansa!"

Pros: "Efficient, early check in and seat selection was simple and done from home. Got to the airport early which is unusual for me but everything went smoothly and was relatively low stress."

Pros: "Everything else was fine."
Cons: "I had paid for comfort seats ($140) extra. When I checked in at gate I was given another seat assignment (without explanation). It turned out to not be comfort seat, in fact it was the last row in the airplane. Had to get eh gate agent back, which was not fast. She said flight was full and a family had been spread out. I understand, but you can't just bump me from a paid and selected seat to a standard seat, especially on transatlantic flight after paying $140 extra. There was no apology. She went back to gate and little while later came back with a comfort seat. Some people seem not to have shown up as the seat next to me stayed open as well. It was very poorly handled."

Cons: "My frequent flyer number did not show up"

Pros: "Late departure, full flight but good overall."

Pros: "Check in was good. Everything was orderly and on time."
Cons: "Fairly cramped for an international flight."

Pros: "flight attendants were very nice, helpful, and accountable. I wish every flight had them on their crew."

Pros: "Great service, food, crew."
Cons: "Seats too small, very uncomfortable."

Pros: "We purchase extra leg room seats which turned out not to be available. The crew understood our frustration and upgraded us to premium economy. Many thanks!"

Pros: "I love the crew, the seats, the food was wonderful and the flight was the smoothest ever. Thanks"

Pros: "Boarding was again easy, directions were clear as to where I should sit. My only trouble with the crew was that announcements were sometimes too quiet to hear at all, which I hardly cared about anyway (seat belts, please). The movie selection was unexpectedly good, as was the music section. Books were meh."
Cons: "I was not comfortable after about four hours, my biggest problem being I had already been riding in an airplane for a total of six hours that day. Food was fine, but came with salt, which was nice. I don't expect a four course meal on an airplane, but I didn't eat with gusto. The headphones provided were lousy, but I just plugged in my own set."

Pros: "I was fortunate to have a complete row (3) seats for myself; the plane was new and in excellent condition. All the staff was courteous and helpful."

Pros: "Flight not too crowded. Check in allowed us to switch seats to maximize space."
Cons: "Food was just so-so."

Pros: "Lufthansa's newest 747-8 airliner was quite the treat for international flight. 100% LED lights with subtle purple-blue mood lighting overnight looks pretty and mimics Virgin's design. Dozens of movies to choose from in addition to many more entertainmrnent options in the widescreen touchscreens. And actual silverware for food, even in economy. The addition of Premier Economy (wider and longer seats) copies the design from United's Economy Plus, at the expense of regular economy's legroom (I believe). Note: if you have noise canceling earphones or headphones like myself, get the 2-jack airline adapter. Lufthansa uses the proprietary dual-jack, at least in economy."
Cons: "Pasta dinner only had 1/8 piece tomato. Stick to the chicken."

Pros: "great service, food, and crew"
Cons: "Absolutly no negatives"

Pros: "We had a great trip -- helpful flight attendants...and no worries at all."
Cons: "DELAYED LEAVING FRANKFURT BY AN HOUR DUE TO BAD WEATHER."

Pros: "nothing"
Cons: "lufthansa used United for this flight. probably because they run out of airplanes, they used a plane so old, I believe it was from Nixon's time. very very old. I am suprised I made it one piece to Amsterdam. So dissapointed why Lufthansa linked their name with such a poor company like United. I never fly United."

Pros: "Nothing. Our flight was delayed by 4hrs due to weather conditions at SFO."
Cons: "Same issues as per first leg of my trip - Brussels/Washington, but even more restricted seat space. There was a empty row[3 seats] empty behind me. I'm a DVT patient[got it a couple of years ago while flying back from China - didn't move during the entire flight] and need to move frequently and need legroom to stretch out my legs as much as possible when sitting. Anyway, having informed a crew member about my DVT condition, I asked if I could move in the empty area - mind you, that was after plane door was closed and boarding had been completed. She refused only to give after takeoff the area to a lady with a little dog in her purse. This flight was operated by United. Our household will from now on avoid any flight that's operated by United."

Pros: "Liked the toilets downstairs. Good selection of entertainment. Pleasant crew."
Cons: "When I checked in I was told that I could take my suitcase, which is a carry-on size suitcase, on board. While boarding I was made to check it as luggage and told it was to big and too heavy even though it weighed 12kg."

Pros: "in flight service is great, lounges are excellent, and personnel are well trained and courteous"
Cons: "that I couldn't bring my kids into the lounge"

Cons: "J’ai eu à payer un bagage supplémentaire sur internet à 160 euros. Mon compte a été débité et à l’aéroport de Dakar les agents au comptoir me disent qu’ils ne retrouvaient pas le payement du troisième bagage. J’ai été obligé de repayer le bagage comptant à 190€"

Pros: "There is a nothing to mention that was memorable or comfortable."
Cons: "I asked for an upgrade as we are on our honeymoon. The ground staff only wanted to get us on the plane and not try in anyway to recognize us. Our seats were very poor quality, you should immediately replace them! I would have rather stood than sit on the flight. The in flight entertainment is so poor. Absolutely disappointing especially with the head sets not working because of poor ports of connection. The food was absolutely tragic. You should fire your catering company. I expect more from your airline and I was disappointed all the way through. I hope you can provide my wife and I better service and an upgrade when we fly back to Washington DC on Flight AF 0054 from CDG to IAD. I work in the luxury hotel sector, and even the door men and room attendants have more autonomy to wow our guests. Flying AF does not want me to spend any more money with your airline in the future."

Pros: "The crew was OK, but nothing special."
Cons: "Air France should not sell tickets for which the connection flights are almost impossible to catch. My luggage was not transferred to my connecting flight. I had to run to catch the flight to Bucharest. At CDC there were only two custom officers for checking passport of EU citizens, on a Saturday morning with hundreds and hundreds incoming travelers. On top of it, one female officer was rude. Typical french :("

Pros: "Nothing"
Cons: "They have a terrible communication problem, they never communicated why the flight was late, they never communicated what they were doing or what was happening. Bad customer service. Bad communication with the client. They told us when I asked several times that we would not lose our connection and that everything was fine and that was not the case. We lost the connection. No one told us anything. Another problem was that the girl in the boarding process removed the suitcases tickets from the boarding pass and did not want to return them, and held it without any cause. Without that tickets we can not claim the bags. The flight staff went looking for us. Pretty sad and disappointed by their service. I understand that they were causes outside the airline but must communicate to the client. They cannot remain silent and say nothing."

Pros: "Perfectly on time, no hassle, seat OK. This is the way I appreciate a flight."
Cons: "Food. No choice, three "madeleine" (sweet) cookies for all, no sugar-free (salty) alternative..."

Cons: "Boarding (by bus) was a total chaos. I had to stand for about 50 minutes, either on the crowded bus or, after climbing with great difficulty three flights of stairs to a high jet-bridge (I am 76), standing there forever with 200 persons waiting to get access to the plane. Totally unacceptable. They started the boarding process early (50 minutes before departure), but passengers were allowed to actually board the plane at the time it was supposed to take off."

Pros: "More space in business class (777-300) than many other airlines."
Cons: "Entertainment very limited. No adjustable air vents in this aircraft"

Cons: "Kayak updated me that my flight would be late. It wasn't. Missed it had to pay $700"

Pros: "Not much, seats are super uncomfortable"
Cons: "Better code sharing with KLM"

Cons: "No leg room at all, cant believe those seats met legal standard. The plane smelled, boarding was a nightmare because too many people had big bags. An announcement had been madd that vags would be collected, but obviously were not."

Pros: "Check in agent extremely helpful and friendly."
Cons: "Not boarding on tarmac via bus. Sandwich - tartar sauce and “chicken” - with two quarter sized pieces of meat was terrible."

Pros: "I like the comfortable seats"
Cons: "Service lag a little"

Pros: "Staff were friendly and seats in business were super comfortable."

Cons: "Excelente aerolínea"

Pros: "Friendly attendants, entertainment variety"
Cons: "Comfort, food could have been better."

Pros: "Food"
Cons: "Entertainment"

Cons: "The flight delayed for 2xhours from Paris to Cincinnati"

Pros: "Fantastic Crew!"
Cons: "Seats are comfortable but tight."

Pros: "The airplane"
Cons: "Nothing"

Pros: "Extremely hot the plane"

Cons: "No space for legs. No food (just snacks). Very high temperature inside the aircraft. Flight delayed by 45 minutes."

Pros: "Liked the transfer"

Cons: "My luggage was lost in Paris. Now I need to wait still."

Pros: "The crew worked hard, but the food was below the French standards."
Cons: "The flight was delayed for 2.5 hours and the passengers spent this time in the cabin without a/c."

Cons: "Because of change in plane..bad choice of seat for long legs of husband...then late in Atlanta and very late into DC"

Cons: "Entertainment screen did not work; in neighboring seat it could not be switched off when we wanted to sleep; sourly employees everywhere (re-booking counter an exception); food close not being edible and cold; I forgot my watch on when going through security in the Air France terminal; when I started to say "sorry" I was yelled at by the screener who said that she will do the talking; she sent me back through the scanner twice without my watch, then once more with the carry-on and made sure that I went to the end of a very long line to wait for another screening rather than having me just go through the scanner without my watch. Needless to say, there was nothing else suspicious about me once the watch was removed. Eager to exercise her power, the security person did not seem to consider that she slowed down a long line of people waiting to be screened. I should add that I am 73 yrs old grey haired female who has traveled a lot both for pleasure and business during my entire life, often to some difficult places and that I do not argue with or provoke those in power in a situation like this. The yelling and the sending me repeatedly through the scanner, which did not beep once the watch was removed, was beyond anything I had experienced anywhere else. The sending me to the very end of the line seemed outright spiteful. (I did miss the plane connection.)"

Pros: "Quiet! No noise-canceling earphones needed. Delicious food."

Pros: "Good seat width Great movie selection Great food and drinks Nice and large A380"
Cons: "The interface of the screens seemed old Need to anticipate the needs of the customer better For example, they brought me my special meal first, but I had to wait 30 minutes later to get a drink to accompany it. The food was getting old. Did not see any newspaper/periodical selection. That would have been nice."

Cons: "Security services at Manchester airport...too long and not friendly at all"

Pros: "Ground crew at CDG was helpful to file a claim for the lost luggage."
Cons: "Ground crew at MXP Was inexperienced. She called every one in my flight to form a new line and it was immediately total chaos. And then they lost one of our luggages!"

Pros: "nice drink selection on board flights"
Cons: "My pregnant wife was downgraded from business to economy 20 minutes before departure because the airline made a mistake with the reservation for our puppy traveling in the cabin with us. If this were not enough, the airline also lost one of our bags so this week we have to file for compensation for both begin downgraded and for the contents of our 30 kilo bag which never made it to Ho Chi Minh. Air France was a complete and total disaster and I would strongly recommend all friends and colleagues to find alternative airlines for travel"

Pros: "I liked the crew, they were professional and tried their best"
Cons: "The flight was a chartered flight . Air France informed us that due to cabin crew shortage they couldn't operate an air france flight and hence they hired Air Belgium. Whilst the crew were nice , the actual plane was old and creaky. It wasn't up to the standards expected of Air France. They could have done better in getting a plane up to standard. A lot of the passengers were disappointed ."

Pros: "Boarding for BUsiness class was fine. Seating was cramped."
Cons: "As I said in my rating, seating was cramped. Food was mediocre. Crew was pleasant."

Pros: "It was ok fligh"
Cons: "Food was not so good"

Pros: "The friendliness and courtesy of the staff."
Cons: "One piece of my luggage was left behind in Paris."

Pros: "Arriving safely."
Cons: "We didn't get boarding passes for the second flight at EDI so we had to exit the secure area, get boarding passes, and go through security a second time for the same trip."

Pros: "Nothing... and we were late which made me miss my connecting flight and I wasn’t reimbursed because it was with a different airline"
Cons: "See above and the food was disgusting"

Pros: "Speed, courtesy of the flight attendants"
Cons: "Landing was a bit rough, understandable due to the weather."

Pros: "Todo muy bien Volvería a viajar con ellos."

Pros: "Short, lots of leg space"

Pros: "General air of professionalism is reassuring"
Cons: "Food, crew appear rushed"

Pros: "Leg room is bigger than average, there is also a foot step which helps you to relax."
Cons: "There must be lice on the plane, either from the customer or on the seats. Got bitten 6 times on the leg and butt!!! And this is not the first time hearing same story, Air France definitely needs to disinfect the plane more thoroughly. Media center is outdated, touch screen isn’t working well, felt being punched in head every time when ppl behind you tries to touch the screen!"

Pros: "the Airline"
Cons: "The Airport, Security, Boarder control."

Pros: "leg space in plane"

Pros: "Párizs Budapest kb 1 óra késés műszaki hiba miatt. egyébként minden rendbe volt."

Pros: "Nice Flight Attendants Good Food"
Cons: "Flight was delayed by 1.5 hours"

Pros: "The crew was very nice and helpful."
Cons: "The food was really poor. The chicken was as dry as it can be. The food taste was poor. I flow 3 weeks ago with KLM and the food was pretty good for flight food. In a French company I expect much more. The entertainment system on the airbus a380 was like an enchant IT system from the past. Very poor reaction time. Very messy and not people oriented at all. Especially after KLM's And Delta experience."

Cons: "Too crowded"

Pros: "I like service of AF"

Cons: "It was all good, only in comparison with Turkish airlines and etihad it is not at par."

Read more about SWISS

Book cheap flights from Washington Dulles Airport to Porto

Recent round-trip flight deals

5/21
Fri
3 stops
Multiple Airlines
33h 00m
IAD - OPO
5/26
Wed
2 stops
Multiple Airlines
18h 40m
OPO - IAD
5/21
Fri
1 stop
Multiple Airlines
14h 30m
IAD - OPO
5/26
Wed
2 stops
Multiple Airlines
28h 45m
OPO - IAD
5/21
Fri
2 stops
Multiple Airlines
28h 50m
IAD - OPO
5/26
Wed
2 stops
Multiple Airlines
18h 40m
OPO - IAD
1/4
Mon
2 stops
Multiple Airlines
38h 15m
IAD - OPO
2/4
Thu
2 stops
Multiple Airlines
16h 50m
OPO - IAD
1/4
Mon
1 stop
Multiple Airlines
12h 35m
IAD - OPO
2/4
Thu
2 stops
Multiple Airlines
31h 40m
OPO - IAD
1/4
Mon
3 stops
Multiple Airlines
34h 10m
IAD - OPO
2/4
Thu
2 stops
Multiple Airlines
16h 50m
OPO - IAD
5/21
Fri
1 stop
TAP AIR PORTUGAL
14h 30m
IAD - OPO
5/26
Wed
1 stop
TAP AIR PORTUGAL
27h 45m
OPO - IAD
1/4
Mon
1 stop
Multiple Airlines
12h 35m
IAD - OPO
2/4
Thu
1 stop
Multiple Airlines
17h 00m
OPO - IAD
4/12
Mon
2 stops
Multiple Airlines
24h 15m
IAD - OPO
4/15
Thu
1 stop
Multiple Airlines
12h 20m
OPO - IAD
4/12
Mon
1 stop
TAP AIR PORTUGAL
10h 00m
IAD - OPO
4/15
Thu
1 stop
TAP AIR PORTUGAL
15h 15m
OPO - IAD
4/12
Mon
3 stops
Multiple Airlines
16h 35m
IAD - OPO
4/15
Thu
1 stop
Multiple Airlines
12h 20m
OPO - IAD
1/27
Wed
1 stop
Turkish Airlines
34h 20m
IAD - OPO
2/1
Mon
1 stop
Turkish Airlines
36h 45m
OPO - IAD
4/19
Mon
1 stop
TAP AIR PORTUGAL
19h 35m
IAD - OPO
4/21
Wed
1 stop
TAP AIR PORTUGAL
30h 25m
OPO - IAD
4/19
Mon
1 stop
TAP AIR PORTUGAL
10h 40m
IAD - OPO
4/21
Wed
2 stops
TAP AIR PORTUGAL
18h 32m
OPO - IAD
1/27
Wed
2 stops
SWISS
35h 25m
IAD - OPO
2/1
Mon
2 stops
SWISS
55h 00m
OPO - IAD
1/27
Wed
1 stop
British Airways
10h 55m
IAD - OPO
2/1
Mon
2 stops
British Airways
49h 45m
OPO - IAD
2/3
Wed
1 stop
Lufthansa
13h 05m
IAD - OPO
2/8
Mon
2 stops
Lufthansa
56h 25m
OPO - IAD
4/19
Mon
1 stop
TAP AIR PORTUGAL
20h 45m
IAD - OPO
4/21
Wed
1 stop
TAP AIR PORTUGAL
12h 20m
OPO - IAD
4/19
Mon
2 stops
TAP AIR PORTUGAL
15h 38m
IAD - OPO
4/21
Wed
1 stop
TAP AIR PORTUGAL
16h 40m
OPO - IAD
3/12
Fri
1 stop
SWISS
11h 35m
IAD - OPO
3/26
Fri
2 stops
SWISS
55h 10m
OPO - IAD
Show more results

Recent one-way flight deals

12/8
Tue
1 stop
TAP AIR PORTUGAL
9h 40m
IAD - OPO
12/5
Sat
2 stops
Multiple Airlines
34h 50m
IAD - OPO
12/8
Tue
2 stops
Multiple Airlines
35h 15m
IAD - OPO
12/5
Sat
3 stops
Multiple Airlines
38h 00m
IAD - OPO
12/8
Tue
3 stops
Multiple Airlines
55h 15m
IAD - OPO
12/5
Sat
1 stop
TAP AIR PORTUGAL
15h 55m
IAD - OPO
12/18
Fri
2 stops
Multiple Airlines
40h 45m
IAD - OPO
12/6
Sun
2 stops
Multiple Airlines
35h 10m
IAD - OPO
12/11
Fri
2 stops
Multiple Airlines
35h 20m
IAD - OPO
12/18
Fri
3 stops
Multiple Airlines
34h 10m
IAD - OPO
12/6
Sun
3 stops
Multiple Airlines
44h 40m
IAD - OPO
12/7
Mon
2 stops
Multiple Airlines
15h 55m
IAD - OPO
12/9
Wed
3 stops
Multiple Airlines
20h 50m
IAD - OPO
12/7
Mon
3 stops
Multiple Airlines
42h 20m
IAD - OPO
12/11
Fri
3 stops
Multiple Airlines
21h 45m
IAD - OPO
12/10
Thu
3 stops
Multiple Airlines
19h 50m
IAD - OPO
12/10
Thu
2 stops
TAP AIR PORTUGAL
12h 05m
IAD - OPO
12/9
Wed
2 stops
TAP AIR PORTUGAL
18h 55m
IAD - OPO
12/11
Fri
1 stop
SWISS
11h 40m
IAD - OPO
12/6
Sun
1 stop
Delta
13h 10m
IAD - OPO
Show more results
-
1
  • Round-trip
  • One-way
  • Multi-city
  • Trip Builder
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First