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Cheap Flights from Washington, D.C. to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Lisbon
Lisbon2 stops$669
Porto
Porto1 stop$575
Faro
Faro1 stop$702
Ponta Delgada
Ponta Delgada1 stop$740
Funchal
Funchal2 stops$715
Lisbon
Lisbon2 stops$669
Porto
Porto1 stop$575
Faro
Faro1 stop$702
Ponta Delgada
Ponta Delgada1 stop$740
Funchal
Funchal2 stops$715
Booking Insights

Price, demand and travel trends for Washington, D.C. to Portugal flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from Washington, D.C. to Portugal cheaper or more expensive than last year?

Fares from Washington, D.C. to Portugal are running about 12% higher than they were around this time last year, averaging $1,011 round-trip.

What are the cheapest fares from Washington, D.C. to Portugal right now?

Here are the cheapest round-trip fares from Washington, D.C. to Portugal on KAYAK in the last week:

• Porto (OPO) from $575
• Lisbon Humberto Delgado (LIS) from $669
• Faro (FAO) from $702
• Funchal Madeira (FNC) from $715
• Ponta Delgada Nordela (PDL) from $740

What’s the cheapest month to fly from Washington, D.C. to Portugal?

January is the cheapest time of year to fly, with average fares of $665. Prices are highest in June, when average flight costs increase to around $1,339.

When is the best time to book flights from Washington, D.C. to Portugal?

Book your flights 14 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 30% compared to booking last-minute (within 2 weeks of departure).

Which airport in Portugal is the cheapest to fly to from Washington, D.C.?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Portugal are:

• Porto (OPO) (avg. price $850)
• Ponta Delgada Nordela (PDL) (avg. price $1,053)
• Faro (FAO) (avg. price $1,068)

What’s the cheapest day to fly from Washington, D.C. to Portugal?

Wednesday tends to be the cheapest day to fly from Washington, D.C. to Portugal, while Saturday is the most expensive. Fares run about 13% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Washington, D.C. to Portugal?

Data from the past 12 months shows it's cheapest to fly to Portugal during the morning with average prices of $868. The night is the most expensive time to fly, with average prices of $1,074.

Key details for Washington, D.C. to Portugal flights

Low season

January

Cheapest flight

$215
Beat the crowds with an average 51% drop in travelers.
The most popular month to fly with an average 35% increase in travelers.
One-way flight from Washington, D.C. Dulles Intl Airport to Lisbon

Your Washington, D.C. to Portugal flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Washington, D.C. to Portugal?

    Yes. Fares from Washington, D.C. to Portugal are low right now. As a rule of thumb, a round-trip under $785 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Washington, D.C. to Portugal?

    Over the past 12 months, round-trip fares from Washington, D.C. to Portugal have ranged from $785 to $1,301.

  • What are the main airports serving Portugal?

    Portugal has 15 airports. The three busiest are Lisbon Humberto Delgado (LIS) (70% of arrivals), Porto (OPO) (21%) and Faro (FAO) (5%).

  • What airlines fly nonstop from Washington, D.C. to Portugal?

    Based on the flight schedule for the next 3 months, 2 airlines offer nonstop flights on this route:

    • TAP AIR PORTUGAL
    • United Airlines

  • Where in Portugal can I fly nonstop from Washington, D.C.?

    Based on the flight schedule for the next 3 months, you can only fly nonstop from Washington, D.C. to Lisbon.

  • Is it cheaper to fly with a layover from Washington, D.C. to Portugal?

    Yes. Nonstop flights from Washington, D.C. to Portugal average $1,100 over the past 12 months, but flights with a layover can cost less. The most affordable connecting airports are:

    • Reykjavik Keflavik Intl (KEF) (avg. price $509)
    • Kastrup Copenhagen (CPH) (avg. price $619)
    • Munich Franz Josef Strauss (MUC) (avg. price $665)

  • How long is a flight from Washington, D.C. to Portugal?

    Flights from Washington, D.C. to Portugal take 7h 02m on average.

  • How often are flights from Washington, D.C. to Portugal delayed and what's the average delay?

    21% of flights on this route are delayed by at least 15 minutes. The average delay is 2h 36m.

  • Which cabin classes are available on flights from Washington, D.C. to Portugal?

    On flights from Washington, D.C. to Portugal you can book Economy Class, Premium Economy Class, Business Class or First Class.

  • What are some popular landmarks in Portugal?

    KAYAK travelers' favorite landmarks in Portugal include:

    • Chiado
    • Ribeira Square
    • Avenida dos Aliados
    • Commerce Square

  • What are the earliest and latest flights from Washington, D.C. to Portugal?

    The earliest nonstop flight from Washington, D.C. to Portugal departs at 5:25 pm and the latest departs at 11:30 pm. Nonstop flights take about 7h 02m.

  • Which airport in Portugal offers free wheelchair services?

    Due to a requirement by the European Union that mandates all airports in the region to provide free accessibility services to travelers with disabilities and reduced mobility, you will be able to receive free wheelchair services at any airport in the country upon request. Simply reserve one by informing your airline or travel agent at least 48 hours before departure.

  • Are there any airlines offering direct flights on this route?

    While most of the flights from Washington D.C. to Portugal have at least one layover in between, you can still get a direct flight on this route. TAP Air Portugal, Lufthansa, and United Airlines are the only airlines offering direct trips. All flights come from Dulles International Airport (IAD) and land at Humberto Delgado Airport (LIS).

  • Which international airlines have a lounge at IAD Airport?

    There are ten lounges at IAD Airport where you can hang out while waiting to board your flight. United Airlines has four lounges, three of which are located in Concourse C while the fourth one is in Concourse D. Air France and KLM have a joint lounge in Concourse A opposite Gate A22 while the Virgin Atlantic Clubhouse is on the same concourse near Gate A32. Turkish Airlines, British Airways, and Lufthansa lounges are all in Concourse B.

  • Which is the closest airport to downtown Washington D.C?

    The closest airport to downtown Washington D.C is DCA. If you're coming from that region, you should consider booking a flight that flies out of DCA. It is also worth mentioning that DCA is the least busy airport compared to BWI and IAD. However, only IAD offers direct flights from Washington to Portugal.

Your guide to booking Washington, D.C. to Portugal flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 14 weeks before your trip. KAYAK data shows fares in this window are around 30% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for January when flights are typically cheapest and avoid June when prices are at their highest.
  • Flying on Wednesday is usually the cheapest. Flights on Saturday cost about 13% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Porto (OPO) is the cheapest airport to fly into from Washington, D.C.. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Lisbon, which is the most popular destination in Portugal. From there, it's easy to continue on to other popular destinations such as Porto, Albufeira and Funchal.
  • If you want the shortest trip, choose the nonstop route from Washington, D.C. Dulles Intl Airport to Portugal. If you'd rather save money, the route from Washington, D.C. Dulles Intl Airport via Reykjavik Keflavik Intl (KEF) is usually the cheapest.
  • When flying out of Washington, you have the choice between Ronald Reagan Washington Airport (DCA), Dulles Airport (IAD), and Thurgood Marshall Airport (BWI). All three airports offer flights from Washington D.C to Portugal.
  • Humberto Delgado Airport (LIS) is the best airport to land in Portugal if you want access to most attractions in the country. This is because the airport is located in the country’s capital and provides flight, train, and bus connections to other major cities in Portugal.
  • When traveling with your pet through BWI Airport, you will find pet relief areas both indoors past security and outdoors. There are two indoor pet relief areas; one is located in the Concourse D/E connector immediately after the checkpoint while the other can be found at the entrance of Concourse C.
  • Any nursing moms traveling through DCA will be happy to know that the airport has several private nursing suites where you can breastfeed your child. There’s one in Terminal A just before the security checkpoints and another two in Terminal B near Touch of Color on National Hall.
  • As long as you don’t plan on staying in Portugal for longer than 90 days, you won’t need a visa to be allowed into the country. However, a passport remains a necessity and it should have at least six months of validity left in it.

Reviews of the top 5 airlines serving from Washington, D.C. to Portugal

 
Need help choosing which airline to fly with from Washington, D.C. to Portugal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
United AirlinesOverall score based on 10454 reviews
6.7Food
7.7Boarding
7.3Comfort
7.1Entertainment
8.1Crew
Airline reviews

The couple in front of me were constantly talking over the announcement from the captain and this was annoying me.

8.0 Excellent72Yonatan, Oct 2026
Read more United Airlines reviews

The couple in front of me were constantly talking over the announcement from the captain and this was annoying me.

Short. Nice quick flight, appreciated after Munich to DC leg.

The flight from Frankfurt to Pisa was cancelled and we were rebooked to route through London. The flight to London was delayed for maintenance issues and we missed our connection flight. Lufthansa automatically rebooked my wife on the next flight but I was not rebooked. I spent over an hour trying to get onto the flight. Ultimately my wife’s gate checked bag from Washington did not arrive in Pisa and remained in London. Very bad experience overall.

This was a small aircraft (relatively) and we were delayed half an hour on takeoff, which is not the airlines fault.

Flight delayed over an hour with plane on runway because of weather in an area of the country we were not in or flying to.

Flight attendant incredibly rude. Stuck her finger in my drink and didn’t even have the courtesy to apologize.

The very best airline service I have experienced. Better than domestic airlines first class and I flew Economy Plus!

The food was horrible. There was no. Wifi, and it was just terrible from bangkok to d. C

Boarding was 2 hours late and then we were delayed another 5 hours on the tarmac. I'm sure the crew were also tired, but some of them were rather snappy. The special dinner I ordered was not served, and they only served a tapas box on takeoff and breakfast before landing. That was disappointing in premium economy. However United was good at rebooking my connecting flight.

It was pretty good, they give a small blanket, neck pillow and earphones. The only bad thing was not big enough leg room for your bag and feet. They gave us a snack, dinner, and breakfast on flight and food was good considering it was on a plane

Business class seats were harder than expected, and lie flat we're not very comfortable. Less expensive than other business class flights, and much better than flying economy. The crew was excellent, as was the food.

Boarding was slow and getting off the plane took a long time. The crew did not have enough water for the trip.

Boarding was a bit chaotic, planes were on the oldish side. Otherwise, very nice flight. Would fly them again.

Poor. Our flight was delayed and they told me I would be fine to make my connection in Lisbon, I missed it. Then they told me my bag would be automatically loaded onto my new flight to rome. It wasn’t. It’s been 4 days and I still don’t have it.

The seats were not designed to comfortably see people in coach for more than 10 minutes

Checked bG chstgr was extremely high. Over $120. It was s bsit and switch knowing an international passenger would have t9 check a bag.

On time, politeness, food okay but entertneiment mediocre with only old movie and the so called new we’re 2 or 3…

Everything went very well. I would like to acknowledge the politeness and professionalism of the staff—they are superb. No complaints.

No legroom, have to pay for everything including water?!? Water is more expensive than beer?

We liked the crew. They were competent, professional and friendly. The only big negative was our departure was delayed several times and the airport staff did not communicate what the problems were and what we should expect.

Good experience with this flight. Boarding was smooth with no issues. The short flight was good with quick drink & snack service. Nice easy way to get back from DC.

Flight is delayed by more than an hour without any reason, the jet blue gates kept changing every 20 mins and there is no proper communication. No ear phones provided in flight, there is a screen with entertainment but what is the use, I have earphones but the console has outdated audio connections, no usb C or bluetooth, they are living 15 years behind

A nightmare. Scheduled flight delayed 2 hours then cancelled because pilot timed out . Unable to find another pilot. Really?! Weather certainly a factor, but JetBlue seemed totally unprepared for the chaos that ensued when flight routes were cancelled. More cancelled flights, finally many of us who had been bumped from other flights were allowed to board a Boston bound plane around 3:00am, delay after delay, sat on tarmac for another half hour while pilot dealt with weight distribution issues (?), arrived in Boston 4:30. Crew were wonderful- same attendants all day and night and they were exhausted. Fortunately for me and my son that Boston was our final destination, not so lucky for many who missed connecting flights.

The flight was delayed 14 hours and communication was very poor. No one seemed to know what was happening and the gate agent was trying to help people for several flights. She was by herself trying to help 100s of people.

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

On time, friendly attendants, quick wheelchair assistance and help checking in bags. Also appreciated change in seats, more forward to make it easier for my 97 year old mother to board and exit the plane. Thank you, JetBlue!

Flight was on time and smooth. Customer service was decent

They forced me to check my hand luggage at the gate.

Still hasn’t left. Why are you asking how it was?

My flight got delayed and eventually canceled, then rescheduled. I and several others had a connection from Boston to Paris and asked several times if we would make it. They assured us we would and then rebooked us mid flight without our consent and closed doors early even though they said they communicated we were a bit delayed. We got stranded in Boston and I opted with being rebooked for a different connection to France since they refused to pay for a Hotel. I've now been in Europe for 5 days and still haven't recieved my bags. There was absolutely no urgency for the fact that I'm in a foreign country with absolutely no change of clothes or any of my medication. Such an overwhelming and frustrating experience.

Lufthansa was great. Crew on board excellent. Frankfort passport control horrible it took about two hours to get through. After waiting in line for hours there was a discussion with the passenger in front of me that was taking forever. The couple behind me had a connecting flight to Turkey in 30 minutes and asked border control officer of her situation and the control officer told the couple in a nasty tone if you don’t like it you can go to another line which would have surely made her miss the flight. Border patrol officers were not helpful. Finally made it through I had to exit and reentry for security check for my connecting flight which Lufthansa changed gates and I had to run to get to A60. Which it seemed 2 kilometers to get to but I made it. If i fid not have 2.5 hrs layover i would have missed my connecting flight to Milan. Not sure if I will fly through Frankfort in the future.

When our flight was canceled and rebooked, my husband's meal request was not transfered. As a result, there was nothing he could eat for dinner and breakfast on the new flight, save a side salad and roll.

Very efficient and excellent service. Nice amenities and beautiful plane. Elevated meals. Boarding could have been more organized. We missed our connecting flight due to EU entry but Lufthansa was extremely quick to rebook us.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

good entertainment package but rather small seats for business class

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

Our flight was delayed for over an hour due to weather, and it had already been a long travel day. However, the crew was calm and compassionate, listening to every complaint with genuine concern. They got us home safely without incident, in spite of all of the obstacles. I’m grateful.

Bad! Disaster!! The LH419 was cancelled after 4 hrs on board with no AC and no toilets

We missed our connection and they put us in a hotel our luggage didn't get rerouted with us so we arrived with no luggage

The crew was friendly, 5/5 stars. The food was better than ok, 3.5/5 stars. The seats were tight, 3/5 stars. The entertainment was 2/5 stars because of lack of WiFi.

ldid not like the late departure did not like the late food service. Food should have been serve earlier ro allow more sleeping time. Did not like beeing interrupted just to show announcement about their duty free onboard Finally baggage did not make it to final destination and are still in casablanca.

My luggage was left behind in Miami. I wasn’t the only one. I couldn’t get a boarding pass from air Maroc but I got one from American Airlines for the air Maroc leg. I had the sense of getting in line with air Maroc boarding crew and showed them my AA boarding pass for air Maroc and I got a new one from them. There were several passengers filing missing bags reports in Casablanca so I assume there isn’t a good coordination between airlines. My AA bag ticket says Casablanca but it is from AA. I wasn’t the only one missing a bag.

I couldn’t find my boarding pass with the information provided by Underpricer. It took me several hours to find what the issue was. Finally I got the right code to get my boarding pass from American Airlines. Underpricer WhatsApp call center finally got it right. When I got to Casablanca my luggage was left in Miami. Not sure which airline fault it was if Air Maroc or AA. I filled out a report with Air Maroc

I would like to praise one of the stewards, Mohamed, who was swift and efficient to help me as I was not feeling well at some point during the flight.

Stay away at all cost! Late boarding, late departure, inoperable seat controls and entertainment screens, very rude cabin crew,

Flights were okay. Not bad, not good. On time and efficient. Planes are a bit old and run down, even the 787... Casablanca airport, HORRIBLE. no air conditioning, no power outlets, no clear signs to anywhere, old, unfriendly, no restaurants to speak of. Casablanca lounge, HORRIFIC No seats available most of the time, no power outlets working, no food, only water is offered, 1 shower available, unfriendly and inneficient people, no air conditioning, flies and bugs everywhere, extremely old seats and unconfortable. Although with some cleaning crew present, toilettes are .... not too clean.

3 hour delay, very rude flight attendant the food was horrible.

Plane is dirty Food quality poor Service was not good Lounge extremely bad

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