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LIS - IAD

Find cheap flights from Lisbon to Washington Dulles Airport from $293

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Lisbon to Dulles Intl departing on 5/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/1
Sat 6/8

Search hundreds of travel sites at once for deals on flights to Washington Dulles Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Lisbon to Washington, D.C..
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Lisbon to Washington, D.C..
In the last 7 days travelers have searched 43,740,974 times on KAYAK, and here is why:

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals from Lisbon to Dulles Intl (LIS-IAD)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Lisbon to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:05 am - 8:30 pmLIS-IAD
14h 25m1 stop
10:50 pm - 11:15 pmIAD-LIS
19h 25m1 stop
$478British Airways
Find Deal
Wed, May 15 - Sun, May 19
6:35 am - 7:15 pmLIS-IAD
17h 40m1 stop
10:50 pm - 5:55 pmIAD-LIS
14h 05m1 stop
Thu, Sep 5 - Sun, Sep 15
7:30 am - 4:05 pmLIS-IAD
13h 35m1 stop
10:15 pm - 10:30 amIAD-LIS
7h 15mnonstop
$542United Airlines
Find Deal
Fri, May 24 - Sun, Jun 9
5:05 am - 1:30 pmLIS-IAD
13h 25m1 stop
10:15 pm - 10:30 amIAD-LIS
7h 15mnonstop
$543United Airlines
Find Deal
Fri, May 24 - Sun, Jun 9
12:00 pm - 3:20 pmLIS-IAD
8h 20mnonstop
10:20 pm - 10:35 amIAD-LIS
7h 15mnonstop
$574TAP AIR PORTUGAL
Find Deal
Thu, May 23 - Thu, Oct 3
12:00 pm - 3:20 pmLIS-IAD
8h 20mnonstop
5:00 pm - 5:35 amIAD-LIS
7h 35mnonstop
$575TAP AIR PORTUGAL
Find Deal
Tue, May 21 - Tue, May 28
11:05 am - 12:01 amLIS-IAD
17h 56m2 stops
3:27 pm - 3:30 pmIAD-LIS
19h 03m2 stops
$582American Airlines
Find Deal
Tue, May 21 - Tue, May 28
12:20 pm - 3:45 pmLIS-IAD
8h 25mnonstop
10:20 pm - 9:40 pmIAD-LIS
18h 20m1 stop
$599Lufthansa
Find Deal
Wed, Sep 11 - Wed, Sep 18
8:25 am - 7:15 pmLIS-IAD
15h 50m1 stop
5:55 pm - 11:15 pmIAD-LIS
24h 20m1 stop
$632American Airlines
Find Deal
Thu, May 30 - Wed, Jun 5
5:05 am - 4:05 pmLIS-IAD
16h 00m1 stop
10:05 pm - 10:30 pmIAD-LIS
19h 25m1 stop
$743Lufthansa
Find Deal
Thu, Jul 4 - Fri, Dec 27

Flights from Lisbon to Dulles Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Lisbon to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

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

The average price of all flights from Lisbon to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Washington Dulles Airport on a Wednesday and more expensive on a Friday. On your return trip to Lisbon, you should consider flying back on a Monday, and avoid Fridays for better deals.

What is the cheapest month to fly from Lisbon to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Lisbon to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Lisbon to Washington, D.C. Dulles Intl Airport is November, where tickets cost $539 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $989 and $957 respectively.

How far in advance should I book a flight from Lisbon to Washington, D.C. Dulles Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Lisbon to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Lisbon to Washington, D.C. Dulles Intl Airport, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 46 days before departure.

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

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Lisbon to Washington Dulles Airport found on KAYAK was with PLAY for $307. British Airways proposed a round-trip connection from $478 and Iberia from $506.

Which airlines fly non-stop between Lisbon and Washington, D.C. Dulles Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Lisbon to Washington, D.C. Dulles Intl Airport.
There are 2 airlines that fly nonstop from Lisbon to Washington, D.C. Dulles Intl Airport. They are TAP AIR PORTUGAL and United Airlines. The cheapest airline for this route is TAP AIR PORTUGAL, with the best one-way deal found costing $525. On average, the best prices for this route can be found at TAP AIR PORTUGAL.

How many flights are there between Lisbon and Washington, D.C. Dulles Intl Airport per day?

Each day, there are between 2 and 3 nonstop flights that take off from Lisbon and land in Washington, D.C. Dulles Intl Airport, with an average flight time of 8h 22m. The most common departure time is 12:00 pm and most flights take off in the morning. Each week, there are 17 flights. The most frequent day of departure is Thursday, when 18% of all weekly flights depart. The fewest flights depart on a Sunday.

Which cabin class options are there for flights between Lisbon and Washington, D.C. Dulles Intl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

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

The average nonstop flight takes 8h 10m, covering a distance of 3,580 miles.

What’s the earliest departure time from Lisbon to Washington Dulles Airport?

Early birds can take the earliest flight from Lisbon at 11:55 am and will be landing in Washington, D.C. Dulles Intl Airport at 3:15 pm.

What’s the latest departure time from Lisbon to Washington Dulles Airport?

If you prefer to fly at night, the latest flight from Lisbon to Washington, D.C. Dulles Intl Airport jets off at 5:40 pm and lands at 9:00 pm.

Good to know

Low season

February

High season

May

Cheapest flight

$293
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Lisbon to Washington Dulles Airport

When to book flights from Lisbon to Dulles Intl

Are your dates flexible? Find out the best times to travel from Lisbon to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Lisbon to Washington Dulles Airport flights

  • What is the cheapest flight from Lisbon to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Lisbon to Washington, D.C. Dulles Intl Airport was $293 for a one-way ticket and $478 for a round-trip.

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

    A passport is required to fly from Lisbon to Washington Dulles Airport.

  • Which airlines offer Wi-Fi service onboard planes from Lisbon to Washington Dulles Airport?

    SWISS, and Lufthansa offer inflight Wi-Fi service on the Lisbon to Washington Dulles Airport flight route.

  • Which aircraft models fly most regularly from Lisbon to Washington Dulles Airport?

    The Boeing 767-400 is the aircraft model that flies most regularly on the Lisbon to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from Lisbon to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between Lisbon and Washington Dulles Airport.

  • On which days can I fly direct from Lisbon to Washington Dulles Airport?

    There are nonstop flights from Lisbon to Washington Dulles Airport on a daily basis.

  • Which is the best airline for flights from Lisbon to Washington, D.C., United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Lisbon to Washington, D.C. are United Airlines and American Airlines. With an average price for the route of $890 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $660 and an overall rating of 7.3.

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

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Lisbon to Washington Dulles Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Lisbon is likely to change within 7 days, so travelers know whether to wait or book now.

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Lisbon with another airline. Booking your flights between Lisbon and IAD can sometimes prove cheaper using this method.

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

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Lisbon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from LIS to Washington Dulles Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $578 or less one-way and $680 or less round-trip.

Prefer to fly non-stop from Lisbon to Washington Dulles Airport?

Find which airlines fly direct from Humberto Delgado to Dulles Intl, which days they fly and book direct flights.

Nonstop departures

Lisbon Humberto Delgado to Washington, D.C. Dulles Intl

Monday

Air Canada, JetBlue, Lufthansa, +2 more

Air Canada, JetBlue, +3 more

Tuesday

Air Canada, JetBlue, Lufthansa, +2 more

Air Canada, JetBlue, +3 more

Wednesday

Air Canada, JetBlue, Lufthansa, +2 more

Air Canada, JetBlue, +3 more

Thursday

Air Canada, JetBlue, Lufthansa, +2 more

Air Canada, JetBlue, +3 more

Friday

Air Canada, JetBlue, Lufthansa, +2 more

Air Canada, JetBlue, +3 more

Saturday

Air Canada, JetBlue, Lufthansa, +2 more

Air Canada, JetBlue, +3 more

Sunday

Air Canada, JetBlue, Lufthansa, +2 more

Air Canada, JetBlue, +3 more

See more direct flights

Nonstop returns

Washington, D.C. Dulles Intl to Lisbon Humberto Delgado

Monday

Air Canada, JetBlue, Lufthansa, +2 more

Air Canada, JetBlue, +3 more

Tuesday

Air Canada, JetBlue, Lufthansa, +2 more

Air Canada, JetBlue, +3 more

Wednesday

Air Canada, JetBlue, Lufthansa, +2 more

Air Canada, JetBlue, +3 more

Thursday

Air Canada, JetBlue, Lufthansa, +2 more

Air Canada, JetBlue, +3 more

Friday

Air Canada, JetBlue, Lufthansa, +2 more

Air Canada, JetBlue, +3 more

Saturday

Air Canada, JetBlue, Lufthansa, +2 more

Air Canada, JetBlue, +3 more

Sunday

Air Canada, JetBlue, Lufthansa, +2 more

Air Canada, JetBlue, +3 more

See more direct flights
See more direct flights

Top 5 airlines serving from Lisbon to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Lisbon to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Lisbon to Dulles Intl? 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.
7.5
Air FranceOverall score based on 1794 reviews
8.2Crew
7.5Boarding
7.2Food
7.4Comfort
7.1Entertainment
Airline reviews

The check in was horrible. I stood in line for 1 hour to check in with an Air France ticket. Then I was told I had to go to Delta counter onstead to check in instead. It made no sense.

8.0 ExcellentRussell, Apr 2024BCN - JFK
Read more about Air France reviews

The check in was horrible. I stood in line for 1 hour to check in with an Air France ticket. Then I was told I had to go to Delta counter onstead to check in instead. It made no sense.

Medíocre. The food wasn't good (although not bad, bad) and the staff wasn't kind. I asked for n extra blanket, the steward never came back, serving us roughly.

They wanted to close counter although they did not provide the wheelchair requested which ended by going alone to transit security and lost long time and they did not want to wait .

They charge me for luggage which is was included on the ticket

Boarding was smooth and on time. The seat was comfortable and the entertainment worked. Staff were gracious.

No bording was given for next trip on same carrier, food was very moderate.

Lost luggage, 2 bags were badly damaged and one of the bags came open.

their gluten free lactose meal is the best, I have never been satisfied with my flight meals. I definitely enjoyed my flight and the chair is very spacious for economy. I'm so glad Delta is my flight way back to NY.

My seat was so uncomfortable, and the headrest was broken. Very very disappointing for the price I paid.

Please serve no god if you must serve dog food

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

I like the non stop flight to Lagos. The cabin crew were great, the food was alright and the ride was smooth. The downside is there wasn’t wifi connection from Lagos to Washington as stated. The 11hrs flight, became boring at times because of no wifi.

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

One of the best flying experiences I’ve ever had.

The flight cancellation and process for getting a new flight was not that clear. United also had some delays that were unexpected. I am the most disappointed by the fact that I originally bought a Lufthansa ticket, only to be flown by United.

Need to have more snacks for the duration and coffee.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

On time - really well operated flight. Friendly staff. Super impressed with United on this round trip.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

The flight was great until towards the end when the flight attendant read an excessively long commercial for purchasing an american airlines credit card. The worst part is that we are doing a lot of traveling this year so i was actually interested in getting the credit card, but I was so annoyed with the long commercial that I completely dismissed the flight attendant bringing around the information. Next time, keep the sales pitch to 10 seconds and then pass around the brochures!!

Nice aircraft. Plane was PACKED full and distance between seats was tight. Had it been more than a two hour flight it would not have been tolerable. I had much more knee space on the JetBlue flight I went out on.

New ridiculous policy by american destroyed my allegiance to american. As a million miler with american, I expected it would be easy to get on an earlier flight when I got to airport earlier than expected, and save a five hour layover. WRONG. The online app would not let me switch flights, So I called, and was promised a call back in 90 minutes. HAH! The customer service desk at DCA said “we no longer have access to changing a flight on our screens. If the app couldn’t do it, I should send a letter to American, but there’s nothing else possible!”

I am tired of being nickel and dimed for seat location, checked luggage and carry on bags. That is why i rarely fly anymore.

It was right on time and crew were very courteous

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

Literally the worst experience ever and I had my service dog with me. Flight was supposed to leave at 1:51 PM but the plane arrived late. They boarded us around 3 PM and kept us on the plane for an hour saying that due to weather conditions in Miami, we could not takeoff yet. After waiting for an hour, they deplaned. And then they will not give us our bags back that we could just leave and schedule for another flight. Every hour they kept updating saying we have to wait another hour without any explanation as to what was going on. Eventually, I went to customer service to change my ticket, but by the time I made it to the front of the line, they started boarding my flight again. And then when we got onto the flight, they said there were two flight attendants That were past their shift. They kept us on the plane for about another 40 minutes until they told us they had no other flight attendance and had to deplane again. Then I gave us hotel vouchers and told us we would be on a flight at 6 AM the next day. At this point it is about 9 PM. I get to the hotel with my dog, who hasn’t been able to go potty for about eight hours. When I arrived at the hotel, I got a text alert saying my flight has been canceled at 6 AM and they moved past to 5 AM, however the hotel shuttle doesn’t leave early enough to make it to the airport for 5 AM flight. So me and some other passengers got a cab after about three hours of sleep to get back to the airport. This was the worst experience ever.

Their computers were down upon arrival to the airport. They were unable to figure out how to board us. We were delayed over an hour and a half.

Delay. Flight was delayed in Washington.knew that connection was impossible as not enough time to switch terminals. The steward would not let me stay the night. So forced to Dallas.late night, after 10pm.hotel checkin was one hour. Passengers lined up only one girl to checkin at comfort inn. No food availability at that time. Had to leave early at 6:30 am to catch a flight at 8:45. Stressfull.

Disastrous boarding. Entered air bridge only to descend stairs and enter a bus. Plane had insufficient storage, was old and chair recline was damaged. Air stewardess was sullen.

I wish to bring to your attention an incident involving a flight attendant that occurred on my recent journey. The attendant displayed a lack of courtesy, which was concerning. For instance, after accidentally spilling water on a passenger, the attendant dismissed the situation rather than offering a proper apology. Additionally, when I handed over my trash, the attendant reacted negatively because I placed a paper cup on the tray, she told me this doesn't go here and threw it back on my table. It was apparent that she was experiencing a challenging day, which unfortunately impacted the service provided to myself and other passengers. While I understand that everyone can have an off day, it is essential for customer-facing staff to seek support to manage personal stress without it affecting their professional responsibilities.

The flight crew was good, the flight itself was quick and comfortable

Boarding was late by 30 min due to a bus missing to take us to the plane... And then the flight was delayed by about 90 minutes, in a 60 min flight

Very agressive with bags both arrival and departures found minor damage to my luggage including my check bag being broken into nothing of value was in there so I do not believe anything was taken but definitely broken zipper into the outer pockets of suitcase

Everything was nearly perfect, and TAP staff were especially helpful when we missed our connecting flights and had to get on the next flight to Rome. The only aspect that could have been better was boarding: it was somewhat disorganized, which created a bit of stress. But in the end, everyone got on the plane, so the less-then-perfect boarding process did not take away from the overall excellent experience.

TAP Air makes you take a bus on arrival or departure, making it difficult for passengers to make connections.

Two of three flight attendants were not super kind as I would expect. The very kind young lady in my section was wonderful but then lady and man up front were not. Sorry but it makes a difference !

Great staff who were ready working with smile 6 in the morning on New Year’s Day. Although security checkpoint was way too busy, the airline staff were understanding and waited few minutes after boarding. We took off not only exactly on time, but arrived 20 minutes early. Two thumbs up!!!

I needed to add "Special Request" meal for myself and my trveling companion,and I ended up having to call their Customer Service. It took a while to get through but eventually I connected with a very proffessional and nice representative who took my request. In the middle of the conversation we were disconnected , as I was trying to all back, the TAP representative actually called me back and confirmed the special request for meals....he called me back from Portugal ! I was absolutely amazed,because that does not happen here in the USA. Perhaps some of the other airlines can learn from TAP's Customer Service. TAP's website at times can be difficult ,such as adding my TSA number. Ended up having it added at the TAP desk at the airport.

The flight attendants were superb and the service was outstanding. Some passengers with small children were very rude and inconsiderate, kids were constantly crying and some were running around the aisle unsupervised.

Terrible. There was a rattling noise the whole flight. The internet didn't work after I paid. Boarding is very disorganized.

Horrible flight attendant in back of economy that screamed at me, have already reported to United. Horrible food - for Gluten free, why would you assume the person is vegetarian? I was served some kind of horrible curry bean paste and multiple cold rolls and soggy vegetables with no seasoning... um no!

The crew member put her luggage and boxes behind my seat so I was able to recline while the passenger in front of me did for 8 hours. My knees were forced against the seat for hours :(. Dude sitting next to me hasn't showered in weeks so I almost threw up.

Sorry my last review for prg to fra was for this flight. My prg to fra flight was fine but my second flight back to Washington DC was with a slow awful crew who wouldn’t come in a timely manner to take trash and take trash before serving coffee tea and was shoving other people’s bottles of water on me when we were not traveling together

Lufthansa was amazing. Definitely upgrade your seat if you can swing it - they take very good care of their passengers. Customs in DC is nothing short of a nightmare though. Stood in line waiting to go back through security for 30 minutes, had to RUN through and across two terminals to make my connection and only had 5 minutes to spare. Terrible. Very very poor coordination by the airport staff and CBP.

I was ver pleased with the service all the way through

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Trouble keeps changing the time and I was booked different flight without knowing it was bad experience

My concern is with Flight: 441 IAH-FRA I was very cramped in my seat and the person in front of me was reclined. I pulled my wallet out of my purse and when finished I did my best to cram it back into my purse. Our flight was very delayed and we were rebooked twice and lots of airport time. As I got off the flight I noticed that I had dropped my wallet( containing all my credit & debit bank cards + 240 US dollars & 240 Euros. I spoke to customer service & Lost &Found. I was denied access to look on the plane. Therefore I have been without money and given no help. Paula Bjork 503.545.6698

Book cheap flights from Lisbon to Washington, D.C.

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Lisbon to Washington, D.C. found on KAYAK in the last 72 hours.
5/15Wed
2 stops
39h 35mLIS-IAD
$293
8/26Mon
1 stopPLAY
25h 10mLIS-IAD
$307
10/3Thu
nonstopTAP AIR PORTUGAL
8h 20mLIS-IAD
$423
8/26Mon
nonstopTAP AIR PORTUGAL
8h 20mLIS-IAD
$454
9/3Tue
1 stopAmerican Airlines
15h 50mLIS-IAD
$490
9/5Thu
1 stopAmerican Airlines
15h 50mLIS-IAD
$491
9/1Sun
1 stopBritish Airways
13h 20mLIS-IAD
$493
5/29Wed
1 stopBritish Airways
14h 25mLIS-IAD
$513
5/15Wed
nonstopLufthansa
8h 25mLIS-IAD
$678
5/13Mon
nonstopLufthansa
8h 25mLIS-IAD
$683

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Lisbon - Washington Dulles Airport Flights

Departure:

Lisbon (LIS)Portugal

Destination:

Washington Dulles Airport (IAD)United States

Return flight deals:

Washington Dulles Airport - Lisbon

Cabin classes:

$2,239
$1,966
$574