Find cheap flights from Maryland to Portugal

Round-trip
1 adult
Economy
0 bags
Fri 4/28
Fri 5/5

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Good to know

Low season

January

High season

July

Cheapest flight

$233

Average price round-trip

$1,230

Good deal round-trip

$387

Good deal one-way

$270
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from Washington Dulles Airport to Lisbon
(avg. price over the last 2 weeks)
or less
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FAQs for booking flights from Maryland to Portugal

Top 5 airlines serving from Maryland to Portugal

Scores according to KAYAK customer reviews
8.0
SWISSOverall score based on 8953 reviews
8.2Boarding
7.8Comfort
8.6Crew
7.7Entertainment
7.9Food
Airline reviews
Pros: "Crew was very attentive and courteous"
Cons: "More fruits and non-starchy vegetables would make food more enjoyable"
Read more about SWISS
Pros: "Crew was very attentive and courteous"
Cons: "More fruits and non-starchy vegetables would make food more enjoyable"
Pros: "Nothing to like"
Cons: "No entertainment, un friendly crew, terrible food"
Pros: "Crew was very nice, appreciated that they came by with water often"
Cons: "Legroom is very cramped, entertainment options are limited. After one 10-hour flight, you've seen everything you wanted to, so the return flight is a bummer"
Pros: "I did not receive a single email from kayak letting me know I could check in or select seats. No updates on flight status! Poor service!"
Cons: "Email updates before flight! Not a single email sent!!"
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."
Pros: "It was an okay flight. Nothing spectacular!"
Cons: "Shorter lay over Better entertainment choices The inflight charging was a joke, did not work in both sectors ."
Pros: "Very friendly and cooperative crew. Entertainment is well upated with latest media."
Cons: "Nothing"
Pros: "the CREW WAS FRIENDLY AND CELEBRATING EASTER WITH THE GUESTS"
Cons: "THE FOOD WAS ADEQUATE, GIVEN THAT WE WERE ON AN AIRPLANE"
Pros: "I was offered to check in my carry on, it was nice."
Cons: "I was told a wheel chair would be available to help me get to Terminal E in Zurich. I had literally TO RUN to catch my connecting flight to NYC since the chair was not their for me in Zurich. I almost missed my flight. I am a 79 years old woman. That was one terrible experience."
Pros: "Check in agent was extremely helpful in expediting both me and my bags after a late check-in. Flight attendants very friendly and helpful, food excellent. If Swiss Air flew everywhere I need to go, I would fly them every time!"
Pros: "Swiss quality, punctuality and reliability."
Cons: "No negatives."
Pros: "The food was amazing, the in-flight entertainment was amazing, and the flight attendants were amazingly kind and beautiful. :) Swiss Air has set the standard on airline food, serving Swiss Chocolate and Gruyere cheese on the flight! It was the best!"
Cons: "My only concern was that there were times when I felt a little too warm. The newer Boeing 777 doesn't have passenger controlled A/C."
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."
Cons: "I had paid a little extra to have a seat in the back of the plane going to Greece and returning also. I was under the assumption the extra charge would give me a seat with only one extra person next to me. On both flights to and from JFK I was seated in a row with 3 seats and not the last row as promised. Just wondering if a refund for the extra charge would be possible."
Cons: "Connecting flight cancelation, didn’t get to go."
Pros: "Everything, but the lack of entertainment."
Cons: "The lack of entertainment."
Pros: "Meals were excellent and filling! Crew was conscientious and responsive. Plane was very clean. Very impressed and would fly with SWISS again over any other airline."
Cons: "My seat didn’t recline properly, and it wasn’t fixable, so it felt a little claustrophobic with the person in front of me fully reclined the whole flight."
Pros: "Nice experience."
Cons: "Seats are not so comfortable. Crew is nice, but not too nice"
Pros: "On board service"
Cons: "the teminal 4 sevice at JFK: the huge line before the security looked like a complete misorder and for no reason lingest lined I ever saw in airports instead of spliting the crowd in shorted lines to every security crew without maku=ing people to pass long lines with the hand luggage and children, it was really and absolutelu=y far from any comfort."
Pros: "Four economy short-hauls in two days: That extra tad legroom (A321, A320, CS100) Planes are very clean Good quality snacks Great staff"
Pros: "I hope this carrier grows by leaps and bounds. The plane was new & clean, the pilots executed flawless takeoff & landing, the flight attendants were friendly to a fault, the plane left on time & arrived early. Round trip Orlando-Venice was $980 round trip. The only niggling detail was the somewhat limited selection of movies."
Pros: "Flight itself was good for a shorter international flight. Dim cabin lights for early morning, crew providing plenty of drinks and snacks."
Cons: "For international travel, I’m always told to get there 3 hours before. For this trip we checked in but didn’t have access to a printer so needed a boarding pass. We wanted to carry on luggage so just needed to print the pass. Swiss was the only airline that wasn’t available on the check-in kiosks. The front desk staff didn’t arrive until closer to 1.5 hours before check in so nearly theall passengers were in a huge line to get passes and check bags."
Pros: "On time departure; easy flight; seating was spacious"
Cons: "The extra charge for a bag!!!!!!!!!!! Would rather fly Southwest or Jet Blue or others that allow a mid size carry on"
Pros: "Tons of movies, excellent food, clean planes, friendly crew. Flying was a pleasure."
Cons: "Checking in is very inefficient at JFK. There was only one (super slow) teller checking all of economy, while three people checked in business class. There were no automated check-in kiosks. you can imagine the chaos. Unfriendly tellers too. On the way back I was selected for a strip search when I checked in at the gate. So was my husband, but he wasn't told of this until he Was boarding and his ticket beeped on scanning. There was no room for our carry on, because we boarded so late. Annoying."
Pros: "The crew was very friendly and attentive. I was impressed at the amount of food we received through out the flight. My family and I enjoyed our flight with Swiss airlines and will definitely use them next time we travel."
Pros: "Nothing because the airplane seats were terribly uncomfortable!"
Pros: "Very impressed with snack: good tasting quiche with biodegradable packaging and no plastic utensils. Thanks for being so green! On time flight."
Pros: "Food and entertainment"
Cons: "Service was poor - several of the staff seemed to be inexperienced and not very customer service oriented. The boarding process was chaotic at the gate - customs were there to check in but quite a few people were unaware (not many announcements). Also, the Economy boarding process wasn't clear and chaotic (i.e., not by row and you also didn't know when you could board. Also, the person in front of me kept reclining her seat and it went back too far. I didn't want to do the same to the person behind me so it was quite uncomfortable."
Cons: "1stly the lady at the check in was not nice [ i should have gotten her name -] she was rude and quite 'authoritarian' which is uncalled for- when you have paid an expensive ticket are just trying to check in. then I checked an extra bag - and could not pay where i checked in. i had to go to another counter to pay - there was a line and it took a good few extra minutes - and i still had to get thru security. if you can pay at the check in counter this would avoid this extra step. i was really not happy about it swiss air needs better efficiency and better customer service"
Pros: "The staff was helpful and professional and kind. The equipment was new and clean. The flight was on-time and uneventful. I would fly this airline again any day of the week."
Cons: "The entertainment screen was difficult to see when the person in front of me reclined because the screen was not perpendicular to my line of vision. I survived based on the other qualities of the flight."
Pros: "Crew were organized and pleasent. Lots of food."
Cons: "Seats in economy are tight."
Pros: "This was my first time flying on Swiss Air. Beautiful aircraft and a very friendly crew. Food was good and our flight was on time. Lots of options for in-flight entertainment."
Cons: "The boarding process was not ideal. This was our first time in the Zurich airport and we were not aware of the passport check at the gate. There were no signs and several passengers tried to board without the stamp only to be sent to the passport check line. Very frustrating. Also, there was no organization so everyone just rushed forward when boarding was called. They should consider boarding by rows to make it a more orderly process. Finally, there was no leg room at all. I realize airlines are trying to squeeze every passenger in that they can, but this was ridiculous. I'm 5'11" and my knees were pinned against the seat in front of me."
Pros: "Great flight. Boarding, departure and arrival on time. Excellent flight attendants."
Cons: "The crew was very short fused and rude to many of the passengers. I was surprised to see how they were talking to so many people I was feeling uncomfortable to even ask for a cup of water."
Pros: "The new 777-300 is great. besides the disorganized boarding, everything else was great!"
Cons: "Through no fault of the airline, there was a strong thunderstorm that delayed our flight. Little information was provided about the situation. It was obvious that we could not fly in the storm, but we were not informed about the likely departure time. The reason I gave a poor ranking is that my suitcase/pack must have been left out in the downpour on the top of the pile so all of my clothes were extremely wet when I reached Boston. The bag itself was wet so it was not a case of something leaking in the bag. I have had to wash all of the clothes and iron them."
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 fine"
Cons: "Cramped"
Pros: "That I was able to get the front seat with the extra legroom at no extra charge. I also liked that the take off and landing were smooth. As was the flight in general. Also, the Swiss chocolate was good."
Cons: "The seats are so narrow and uncomfortable! The overnight flight from Boston to Zurich was the most uncomfortable flight I've ever experienced. There is no legroom. And the seats are incredibly narrow. When the person in front of me had their seat reclining I had even less room. Horrible. The only reason the flight from Zurich to Boston wasn't quite as bad was because I was able to get the seat by the exit aisle with extra legroom. The food was terrible. It didn't taste like real food. It looked and tasted totally artificial. Overall, a very poor experience."
Pros: "The food and staff were very good."
Cons: "You should board the plane from the back so people aren't climbing over each other. Paying to pick a seat is a huge turnoff. Economy very cramped. Lufthansa was better on that."
Cons: "They didn't let me on the flight because I'm disabled pure disciminati"
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: "Flight Attendants friendly"
Cons: "Had to check my carry on due to size. Plane had reduced size and was a smaller plane."
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: "Crew was friendly and made a bad situation as comfortable as possible."
Cons: "The flight was delayed for almost 3 hours for a issue with the pilot's chair. The movies reset in the middle of the showing."
Pros: "Courteous crew, good food."
Cons: "The beer selection could use some work."
Pros: "Food was amazing, boarding was smooth and it went fast, and the crew was very nice."
Cons: "The seats were uncomfortable and if someone reclined their seat was about an inch away from your face. So if you had anything on your tray it was slammed into you stomach. Also it was so hot on the plane felt sick the entire way. Asked twice to turn down the heat nothing really happened. Missed the individual fans."
Pros: "Friendly crew"
Cons: "Very uncomfortable seating"
Pros: "Overall service was excellent and staff was courteous and helpful."
Cons: "None"
Pros: "Flight boarding was quick and fast and food was great."
Cons: "Seats had no room and if someone in front reclined the tv was right in your face. Also what happen to having individual fans above. It was so hot I felt sick the whole way and when we pushed the call button no one came had to flag down an flight attendant walking by. We had to ask three more times to get the heat down. Overall it was okay."
Cons: "Superior customer service"
Pros: "Crew was great!"
Cons: "Airline was operated by Delta Air. COVID precautions with distancing on board were not followed. Flight was overcrowded- hardly any empty seats between passengers."
Pros: "Crew from Washington to Cancún were extremely rude"
Cons: "Smile"
Pros: "The crew was very attentive and had great personality. They anticipated any needs we had."
Pros: "The seat was ok, but the crew was very good and helpful"
Cons: "Good company, have the very good attendants"
Pros: "Crew was absolutely amazing!"
Cons: "Delta check in was HORRIBLE! I was charged for a bag check in and had to take my bag through security and they threw away my cologne and razors."
Pros: "Quickly moving through the airport."
Cons: "Take out old planes. It was really run down."
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: "5 hours delay"
Cons: "5 hours delay"
Pros: "Solid crew!"
Cons: "No complaints. I was barely up in the air!"
Pros: "The flight attendant from IAD to MSP called Bernadette was wonderful!"
Cons: "Delayed"
Pros: "Super comfortable seats. Lots of movie options."
Cons: "Food was not very good"
Pros: "Great entertainment system."
Pros: "Flight was smooth, arrived early..crew was prompt and courteous."
Pros: "The crew members were excellent and efficient. Europe was fabulous."
Cons: "9+ hours in the air is never fun when you're in economy class: humans have gotten bigger as airline seats grow smaller."
Pros: "The great job the crew preformed."
Cons: "older plane - seats were not comfortable."
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."
Cons: "The bathrooms on the plane were soooooo tiny, and the logos on the bathroom doors didn't work well."
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"
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: "The Delta desk attendant at CVG was unable to come up with another flight to get me from CVG to Colorado Springs on 6/13. There is nothing to like."
Cons: "See comments above."
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."
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"
Cons: "Delayed two hours"
Pros: "Flight management and service is better relatively"
Cons: "Gate agents are useless"
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 :-/"
Cons: "The special meal I ordered was delivered to someone else. The entertainment system wasn't functioning properly and no English susbtiles we're offered for any of the movies, unlike my previous Delta flights (for some reason there were only Chinese)"
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: "very punctual and nice aircraft"
Cons: "timming of the flight"
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: "I liked the fact that they have a train to take you from one concourse to another!"
Cons: "Very busy airport! Boarding was delayed and flight was overbooked. I wasn't too happy but it could've been worse."
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: "The new Delta planes have great leg room for tall people even in coach."
Pros: "Nothing"
Cons: "Being scammed by the Chinese, China Southern"
Cons: "everything sucked time bery bad servive starfed on flight nonacolok was sergvedngypu ilt was really disappoinyling includigbymkthrvlounhr aothee airlione"
Pros: "Food & entertainment system"
Cons: "Tight seats"
Cons: "Crew could have been more friendly."
Pros: "Specially food service and also boarding"
Cons: "They checked carry on again even you passed from the counter I felt very bad about this"
Pros: "Every thing"
Pros: "The crew were all very polite and friendly."
Cons: "Nothing to complain about!"
Pros: "Flight time and layover at connecting flight"
Cons: "Food needs to improved. In all other flight Indian spice is served as Asian veg flight seat are too tight"
Pros: "Excellent service, food, and entertainment options!"
Pros: "Excellent service with comfort"
Cons: "All was great"
Pros: "everything"
Cons: "nothing"
Pros: "Friendly. Lots of food and accessories."
Cons: "The seats were cramped together"
Cons: "The lost 3 of my bags"
Pros: "The food and entertainment were okay."
Cons: "The staff was rude. The entertainment consoles didn’t work well."
Cons: "They are telling me because I booked with Kayak through PriceLine or vice versa they will not give me any hotel for my 14 hours lay over."
Pros: "I liked the food and the staff were very friendly"
Pros: "The food was excellent."
Cons: "The middle seat was cramped."
Pros: "The entertainment was excellent!"
Cons: "The comfort level for that long of a flight was very poor. Seats are way too close together. There is no knee room from the seats at the front at all. People operating their video monitor is a disturbing fact for the passengers who sits in front of them."
Pros: "Staff"
Cons: "Seats, food and service"
Pros: "great crew and flight!"
Cons: "We would have loved to have been able to easily upgrade to business class but weren't able to."
Cons: "Very small space"
Cons: "The sound from the headphones is just horrible. I decided not to listen to music and could barely hear the voices in a movie."
Pros: "No delays Courtesy of crew Very pleasant fly"
Pros: "Offered us a free meal for the poor service."
Cons: "Old, uncomfortable plane. Took off 30-40 minutes late. Poor quality food. Circled Istanbul airport for 15 minutes without any communication. Flight arrived late, but no info. on connecting flights provided. At least eight passengers ran through the Istanbul airport to catch the connecting flight to Rome and, despite the fact that the plane was still at the gate, the gate staff person would not allow any of us on the flight. Customer service staff were unhelpful and had a negative attitude. The transfer were helpful."
Cons: "car seat not wrapped in plastic bag so I lost my cushions on the seat. Now my child can no longer use it."
Pros: "Amazing food. Can't believe how good the desserts were. Entertainment also top notch."
Pros: "Great service, polite."
Cons: "A bit slow serving food."
Pros: "Everything"
Pros: "Service was exceelent and all crew staff were professional and friendly and courteous."
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."
Pros: "Turkish Airlines remains my favorite - boarding process is organized, seats are comfortable, food is good, and crew is friendly and helpful."
Cons: "Good floght"
Pros: "Easy checking reasonable wait."
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"
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: "Excellent service and food."
Cons: "None"
Pros: "Service was outstanding!"
Cons: "I have no complaints!"
Pros: "I loved being able to stay in Istanbul for a while. We had a great time during the layover, and the flight was incredible. The entertainment was top notch, and the food was as well. They had delicious olives and cheese on most meals, and the hot food had great use of tomatoes and umami to add taste to the meals. It has been a great experience traveling on Turkish Airlines, and I would suggest it for everyone."
Cons: "Leg room for the seats were a little tight."
Cons: "Food"
Cons: "Absulotely nothing."
Cons: "Rude stewardess"
Pros: "Food was good. Service was excellent."
Cons: "Nothing."
Pros: "I like everything. Flight was so good."
Cons: "I like everything."
Cons: "because of turbulence, they stopped serving food and beverages in the middle of their service but it wasn't that shaky. I've been in worse flights and they still served the food. they did not stop midway."
Pros: "Care and attention the flight attendance showed."
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 crew were great! The seats are not that comfortable, it happened that I had 3 seats raw for myself but the armrests were not going up so I could not utilize them and lie down to sleep."
Pros: "Perfect"
Cons: "Nothing. Flight was amazing"
Cons: "Boarding at Florence is always chaotic but this isn't within the control of KLM or their crew."
Pros: "Flight was on time."
Cons: "Staff: from check in to landing, they could at least smile. Baggage claim was a nightmare, 6 Schengen flights in the same belt."
Pros: "Food was great, enjoyed watching videos, staff very profession and friendly."
Cons: "Boarding was delayed and prolonged My Baggage was not transferred and was not available when I arrived in Dulles."
Pros: "Fantastic gate agents!"
Cons: "The food was terrible."
Cons: "Fix the damn KIOSKS at Vienna!"
Pros: "Onboard crew were nice and polite. Flight was on time (a rarity)."
Cons: "The boarding crew was rude and unpleasant, the plane was boiling hot."
Pros: "Just as I expected. And I made my last connection easily."
Cons: "Not being 1 hour late"
Pros: "Very professional"
Cons: "Lost luggage"
Cons: "Too hot inside the aircraft"
Cons: "There was no wifi on flight"
Pros: "Everything was smooth and effortless."
Cons: "Can’t think of anything."
Pros: "The crew was great but the seat wasn't as comfortable and didn't have much leg room."
Cons: "If only there was a way to be able to lie down and sleep - you would be pioneers in aviation"
Pros: "My seat at the window was great and the staff really friendly and courteous!"
Cons: "No reading light in my seat..."
Pros: "Everything is alright"
Pros: "The constant smile conferred by flight attendants through the entire flight."
Cons: "The boarding was a bit disorderly. Lanes for zones 3 and 4 were not clearly indicated."
Pros: "The crew was really friendly."
Cons: "There was a Force Majeur delay in Helsinki due to wings freezing that caused 20 minute delay to Amsterdam and made the interchange stressful."
Pros: "Friendly hostesses"
Cons: "Flight was delayed 3 hours"
Pros: "Good flight, very attentive crew."
Pros: "kLM staff was great."
Pros: "The cabin crew was so kind, efficient, and attentive. All meals and snacks were delicious."
Pros: "Good services!"
Cons: "infotainment was down. Lost my luggage the flight was delayed"
Cons: "The cabin crew was racist! She asked me to move from a seat because she wanted another guy ( obviously from her country ) to take it! Rude and racist."
Pros: "Service, technology"
Cons: "Could not print by boarding card and was not allowed to board in Amsterdam"
Pros: "Crew was very nice and helpful, entertainment system worked well and had good choices"
Cons: "Seats were not very comfortable, it was uncomfortably hot and there was not air conditioner vent above like most other airlines"
Pros: "Absolutely nothing!"
Cons: "the connection flights was the worse! The gate was changed in Amsterdam 3 times! From D82 to C6 and then to C11. The distance between B82 and C was 20-30 minutes walk. No rushing was needed though, the flight was delayed for 1:30h and after we all boarded a further delay was announced. I will never fly with KLM."
Pros: "Very friendly service!"
Pros: "The flight crew was nice. Plane departed/arrived on time."
Cons: "I paid €60 extra to sit in the emergency door seat to get more leg room but once.i was in the plane learned for more leg room I accepted a smaller seat next to a bathroom and no entertainment. I could not store my belongings near me. No power outlet to charge my devices for my own entertainment on a 7 hour flight. Dealing with constant traffic for the bathroom. I sat in the middle seat between two hours other men. It was a constant struggle arm space. After 7hours in the air I could not wait to get off the plane. If I didn't actually pay an extra €60 for the seat I may not feel bad but I feel like I might have been better off without paying for the "upgrade""
Pros: "Seats were comfortable"
Cons: "Flight was delayed by 2 hours. Could have gone to Amsterdam and come back in that time"
Cons: "Crowded seating, wake-up for breakfast service two hours before arrival"
Cons: "At some point the luggage was lost. here."
Pros: "Pretty basic one hour flight so there's not much to complain about or praise about. I got some sleep which was good."
Cons: "The crew had their general Dutch aloofness on form. Chatted to one of the stewardesses in Dutch up until she saw I had a British passport then she decided she could only speak English to me."
Cons: "I don’t like the limited choice of drinks on these short KLM flights."
Pros: "Flight was delayed for three hours and was a very stressful flight"
Cons: "Flight was not on time and got to destination very very late pier management of aircrafts"
Pros: "had problems checking in , in that I was charged for a suitcase! I have since checked my paper work and found thad that I had paid for a case! I will follow this up when I return to the UK"
Pros: "Easy Boarding"
Pros: "Equally friendly crew and experience. It was complimented by the time we got to spend in the fantastic KLM lounge while we waited for the flight."
Cons: "Nothing!"
Cons: "Why do the crew have to slam the overhead and catering compartments to get them to shut?"
Pros: "Crew service"
Cons: "Flight delayed."
Pros: "staff hospitality, cleanness of the cabin and toilet and punctuality of the flight"
Cons: "lack of meal options"
Pros: "Very good flight, excellent service and good food."
Pros: "The crew was very pleasant and professional. toilets were very clean adequate overhead space"
Cons: "Very uncomfortable seats in Economy Comfort. Legroom and recline were OK but the seats were extremely narrow. No evening meal and breakfast was minimal"
Pros: "Nice, turbulent-free flight. Food was good, service with a smile. Leg space was OK because Boeing 777s are usually better at this."
Cons: "Flight left over an hour late because of a sensor glitch. It is concerning when a technical glitch happens. But, the flight was smooth."
Cons: "I missed my flight because of MU"
Pros: "Almost missed flight due to line at customs and having to pick up suitcase and check in again, they did wait for me though"
Pros: "Crew was very attentive and professional."
Cons: ". The economy seats on the Lufthansa A350 were extremely uncomfortable and seemed excessively narrow as well has having cramped legroom. I could not get comfortable let alone sleep, and my backside felt like I had been sitting on a park bench rather than a long haul coach airline seat."
Pros: "Nice crew"
Cons: "Better food, some entertainment, better bathrooms"
Pros: "Crew was excellent."
Cons: "n/a"
Pros: "My flight was delayed four hours, so I missed my connection to Sofia and had to re-book for two connecting flights instead of one, which makes for a long, tiring trip."
Cons: "I understand the delay due to weather conditions, but I wish I was rebooked for one, not two connecting flights. Now, instead of flying directly to Sofia from Frankfurt, I have to go to Munich first and then to Sofia, which makes my trip 9 hours longer"
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."
Pros: "On the first leg of flight - united, we were surprised by the stewardess' request. We have 2 small children. The stewardess asked the man to change the seat so we can have more room in the center seats. We are grateful for that otherwise it will be very uncomfortable long flight."
Cons: "I am hoping for games but didn't find chess or any other games on the Lufthansa flight. Please add that on the flight otherwise I will stuck watching the movies the rest of flight."
Pros: "Everything except the checking in process"
Pros: "The crew."
Cons: "The airplane arrived over 45 minutes late."
Cons: "Fight could have been on time! It was over 45 minutes late, because of the crew"
Cons: "You canceled my trip"
Pros: "Efficient boarding, friendly crew, nice range of entertainment options."
Cons: "An economy seat is an economy seat ...."
Pros: "Baggage arrived with me. Upgraded to First Class because so many of those passengers got other flights the night before."
Cons: "Original 5 pm flight was cancelled because there was no Crew or plane, even though it’s a United hub. Though flight cancelled early, United could not get me home same day so provided hotel and meal. Next day flight scheduled 7:05 then 8 am, but even that time came and went without boarding. 15 hours delayed and no hurry getting the plane to depart at the stated time. Total lack of customer service and concern"
Pros: "The boarding process was well organized and fast."
Cons: "We were unable to fly this trip."
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."
Pros: "I wasn't expecting free in-flight movies and meals, which were very welcome"
Pros: "nothing"
Cons: "Flight got delayed 9 hours."
Pros: "Timely, friendly, clean plane"
Cons: "Food was bland!!!"
Cons: "Wish we’d had a bit more legroom"
Cons: "We never got on that flight!"
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: "crew friendliness"
Cons: "selections in entertainment system is very old."
Pros: "On time"
Pros: "Food was great."
Cons: "Entertainment was frustrating"
Pros: "SERVICE"
Pros: "They were nice"
Cons: "They were good"
Pros: "Service was very good, flight was very smooth"
Pros: "Restful flight"
Pros: "The service by the flight attendants was very good starting from the welcome to the end in spite of the fact that it was quite late night flight. Also by fortunate luck I had the chance to sleep as the next three seats to me were all empty in the middle block, which made the whole trip less exhaustive."
Cons: "If the seats next to me weren't empty and I couldn't lay down across all of them it would have been a difficult flight as the economy seats are not even close with economy comfort levels of other international airlines like Turkish Airlines especially the seat pitch size. Entertainment choices could be improved by more recent movies. There were very few selection."
Cons: "Seats on airplane from Frankfort to Cairo"
Cons: "Not enough room. Aisle seat was too narrow and short."
Pros: "Economy premium seating was definitely worth it. I had a great sleep. Stewards were friendly and helpful."
Pros: "Flight attendants, food, drinks and space."
Pros: "Food"
Cons: "Crew very rude unlikely Lufthansa"
Pros: "On time all the time"
Cons: "Food getting worse year after year."
Cons: "Flight delayed by about an hour"
Cons: "bad weather, not your fault"
Pros: "Excellent service, on time arrival, a great experience! Everything was easy with Lufthansa, which soothed my jitters and helped me relax (as much as is possible!)"
Pros: "Smooth flight"
Cons: "Seats were not comfortable even in business"
Pros: "My parents had a wonderful experience. Very professional and courteous!"
Pros: "Timely departure."
Cons: "Fruit and a muffin is not enough for breakfast."
Cons: "No vegan food"
Pros: "Fast boarding, on time"
Cons: "Too cold in plane, announcements too loud"
Pros: "The entertainment choices were excellent"
Cons: "Boarding three planes to three different destinations from the same gate is very confusing."
Cons: "It was too cold on the plane."
Pros: "Good flight good staff. Captain explained the route which is nice."
Cons: "No negatives"
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."

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1 stopPLAY
20h 50mBWI-LIS
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$411
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4/23Sun
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10h 05mIAD-OPO
4/26Wed
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11h 45mOPO-IAD
$456
5/2Tue
1 stopSWISS
33h 00mIAD-OPO
5/9Tue
1 stopSWISS
29h 25mOPO-IAD
$463
4/20Thu
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1 stopAmerican Airlines
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$465
4/23Sun
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31h 40mOPO-IAD
$466
9/25Mon
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10/2Mon
1 stopAir France
15h 20mOPO-IAD
$472
4/8Sat
2 stopsDelta
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4/18Tue
1 stopDelta
15h 10mOPO-IAD
$475
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1 stopDelta
23h 25mIAD-OPO
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1 stopDelta
32h 45mOPO-IAD
$480
4/14Fri
2 stopsAir France
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4/21Fri
2 stopsAir France
19h 46mOPO-BWI
$486
4/27Thu
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27h 30mOPO-IAD
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11h 45mOPO-IAD
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4/19Wed
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4/26Wed
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17h 31mOPO-BWI
$494
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5/10Wed
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26h 10mLIS-IAD
$609
5/5Fri
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23h 15mIAD-LIS
5/9Tue
1 stopLufthansa
18h 25mLIS-IAD
$613
9/14Thu
1 stopBrussels Airlines
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23h 35mLIS-IAD
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11h 30mDCA-LIS
10/4Wed
2 stopsAir Canada
16h 44mLIS-DCA
$657
9/10Sun
1 stopTAP AIR PORTUGAL
21h 40mIAD-PDL
9/17Sun
1 stopTAP AIR PORTUGAL
12h 45mPDL-IAD
$734
4/12Wed
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31h 20mDCA-LIS
4/19Wed
1 stopUnited Airlines
27h 42mLIS-DCA
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24h 10mIAD-FAO
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5/30Tue
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27h 55mIAD-OPO
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Flights to Portugal

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Portugal - Maryland

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