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Cheap flights from Lisbon to Washington, D.C. from $248

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lisbon to Washington, D.C. departing on 10/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Lisbon to Washington, D.C.

Cheap round-trip flights

Logo
6:35 am - 3:00 pmLIS-IAD
13h 25m1 stop
Logo
10:45 pm - 5:55 pmIAD-LIS
14h 10m1 stop
$538
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Wed, Oct 15 - Sun, Oct 19
Logo
5:00 am - 3:35 pmLIS-IAD
15h 35m1 stop
Logo
6:30 pm - 11:15 amIAD-LIS
11h 45m1 stop
$545
Find Deal
Sat, Sep 6 - Thu, Sep 11
Delta Logo
5:00 am - 3:35 pmLIS-IAD
15h 35m1 stop
Delta Logo
12:13 pm - 8:50 amIAD-LIS
15h 37m2 stops
$546Delta
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Thu, Aug 28 - Wed, Sep 10
Delta Logo
5:40 am - 7:15 pmLIS-IAD
18h 35m1 stop
Delta Logo
6:50 pm - 11:20 amIAD-LIS
11h 30m1 stop
$548Delta
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Fri, Oct 24 - Wed, Nov 19
British Airways Logo
7:20 am - 10:57 pmLIS-DCA
20h 37m2 stops
British Airways Logo
11:40 am - 12:05 pmDCA-LIS
19h 25m2 stops
$553British Airways
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Thu, Oct 23 - Sun, Nov 16
British Airways Logo
7:20 am - 10:57 pmLIS-DCA
20h 37m2 stops
British Airways Logo
4:40 pm - 9:05 amDCA-LIS
11h 25m1 stop
$565British Airways
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Thu, Oct 23 - Mon, Nov 17
Lufthansa Logo
5:05 am - 3:50 pmLIS-IAD
15h 45m1 stop
Lufthansa Logo
10:05 pm - 10:15 amIAD-LIS
7h 10mnonstop
$574Lufthansa
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Thu, Oct 23 - Sun, Nov 16
United Airlines Logo
5:00 am - 2:35 pmLIS-IAD
14h 35m1 stop
United Airlines Logo
5:20 pm - 8:10 amIAD-LIS
9h 50m1 stop
$575United Airlines
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Thu, Dec 4 - Mon, Dec 8
Lufthansa Logo
5:05 am - 1:30 pmLIS-IAD
13h 25m1 stop
Lufthansa Logo
5:10 pm - 7:55 pmIAD-LIS
21h 45m2 stops
$577Lufthansa
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Mon, Oct 20 - Wed, Nov 19
United Airlines Logo
5:05 am - 5:26 pmLIS-BWI
17h 21m2 stops
United Airlines Logo
10:56 am - 9:20 amBWI-LIS
17h 24m2 stops
$590United Airlines
Find Deal
Thu, Oct 23 - Tue, Nov 18

United Airlines flights from Lisbon to Washington, D.C.

Our best United Airlines deals on Lisbon to Washington, D.C. flight tickets
United Airlines
Dec 4
LIS5:00 amLisbon Humberto Delgado
14h 35m
1 stop
IAD2:35 pmWashington, D.C. Dulles Intl
Dec 8
IAD5:20 pmWashington, D.C. Dulles Intl
9h 50m
1 stop
LIS8:10 amLisbon Humberto Delgado
$575
Find similar
United Airlines
Oct 23
LIS5:05 amLisbon Humberto Delgado
17h 21m
2 stops
BWI5:26 pmBaltimore/Washington
Nov 18
BWI10:56 amBaltimore/Washington
17h 24m
2 stops
LIS9:20 amLisbon Humberto Delgado
$590
Find similar
United Airlines
Sep 5
LIS12:20 pmLisbon Humberto Delgado
8h 25m
IAD3:45 pmWashington, D.C. Dulles Intl
Sep 11
IAD10:20 pmWashington, D.C. Dulles Intl
18h 30m
1 stop
LIS9:50 pmLisbon Humberto Delgado
$606
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Iberia flights from Lisbon to Washington, D.C.

Our best Iberia deals on Lisbon to Washington, D.C. flight tickets
Iberia
Aug 29
LIS6:35 amLisbon Humberto Delgado
13h 25m
1 stop
IAD3:00 pmWashington, D.C. Dulles Intl
Sep 14
IAD4:35 pmWashington, D.C. Dulles Intl
10h 10m
1 stop
LIS7:45 amLisbon Humberto Delgado
$576
Find similar
Iberia
Aug 11
LIS6:35 amLisbon Humberto Delgado
13h 25m
1 stop
IAD3:00 pmWashington, D.C. Dulles Intl
Aug 25
IAD4:35 pmWashington, D.C. Dulles Intl
18h 30m
1 stop
LIS4:05 pmLisbon Humberto Delgado
$617
Find similar
Iberia
Oct 21
LIS8:45 pmLisbon Humberto Delgado
31h 12m
2 stops
DCA10:57 pmWashington, D.C. Reagan-National
Nov 15
DCA12:56 pmWashington, D.C. Reagan-National
17h 54m
2 stops
LIS11:50 amLisbon Humberto Delgado
$625
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Lisbon to Washington, D.C.

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Washington, D.C.?

The month of September is, on average, the cheapest month to fly to Washington, D.C. from Lisbon, with most prices found around $541. If you’re not able to fly to Washington, D.C. in September, then March is your next best option. Flight prices from Lisbon to Washington, D.C. during March average around $560.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Lisbon is on a Thursday. momondo users have found tickets for Thursday departures for as low as $715. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Lisbon to Washington, D.C. for around $871.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

At noon is the cheapest time of day to fly from Lisbon to Washington, D.C. when you can find flight prices for as low as $484. Flying to Washington, D.C. at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $780. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Lisbon Humberto Delgado to Washington, D.C. flight route?

Fly from Lisbon Humberto Delgado to Washington, D.C. Dulles Intl for the best Lisbon Humberto Delgado - Washington, D.C. flight prices

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from Lisbon when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $704 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Lisbon for as low as $581 on momondo.

What cabin class options are available on Lisbon Humberto Delgado to Washington, D.C. flights?

There are 3 cabin classes available to choose from on Lisbon Humberto Delgado to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Lisbon to Washington, D.C. flights?

You could potentially save up to 12% on your flight if you consider stops on a Lisbon to Washington, D.C. flight.

How have Lisbon to Washington, D.C. flight prices changed over time?

As of July 2025, prices for Lisbon to Washington, D.C. flights are approximately 24% more expensive when compared to flights at the same time last year.

When to book flights from Lisbon to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Lisbon to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Lisbon to Washington, D.C. (LIS to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Lisbon to Washington, D.C.

Best Price Found

$248

Fastest flight time

8h 15m

Direct flights

Every day

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from Lisbon in the past 72 hours is $248. The best round-trip flight deal from Lisbon to Washington, D.C. found on momondo in the last 72 hours is $538.
The fastest flight from Lisbon to Washington, D.C. takes 8h 15m
Direct flights go from Lisbon to Washington, D.C. every day.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)
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  • How far is Lisbon Humberto Delgado to Washington, D.C. by plane?

    There are 3562.1 mi between Lisbon Humberto Delgado and Washington, D.C.. Typically, this will take 8h 15m by plane in normal conditions.

  • When did momondo last update prices for flights from Lisbon Humberto Delgado Airport to Washington, D.C.?

    Prices for flights from Lisbon Humberto Delgado Airport to Washington, D.C. are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lisbon Humberto Delgado Airport to Washington, D.C.?

  • How old do you have to be to fly from Lisbon Humberto Delgado Airport to Washington, D.C.?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lisbon Humberto Delgado Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Lisbon to Washington, D.C.?

  • What is the most popular airline from Lisbon to Washington, D.C.?

Best airlines flying from Lisbon to Washington, D.C.

Compare and see reviews for airlines that fly from Lisbon to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $493Free CancellationRating
6.6
7,109 reviews
Search British Airways flights
United AirlinesPriceFrom $534Free CancellationRating
7.4
8,846 reviews
Search United Airlines flights
LufthansaPriceFrom $536Free CancellationRating
6.8
7,199 reviews
Search Lufthansa flights
TAP AIR PORTUGALPriceFrom $541Free CancellationRating
7.1
1,914 reviews
Search TAP AIR PORTUGAL flights

  • United Airlines Flights From Lisbon to Washington, D.C.

    United Airlines is one of the most popular airlines flying from Lisbon to Washington, D.C., operating 6 flights/week on average for this route. A good United Airlines flight deal for Lisbon to Washington, D.C. starts from $534 round-trip, up to an average price of $635. Our users have rated United Airlines at 7.4/10.

  • TAP AIR PORTUGAL Flights From Lisbon to Washington, D.C.

    The best TAP AIR PORTUGAL deal for Lisbon to Washington, D.C. flight tickets found on momondo in the last 72 hours was $541, round-trip. It should be noted that an average TAP AIR PORTUGAL flight deal for this route in this time was higher, at $726 round-trip. TAP AIR PORTUGAL operates 12 flights out of Lisbon into Washington, D.C. in an average week, so prices vary by time and availability. 1,915 TAP AIR PORTUGAL reviews by users on momondo have scored the airline at 7.1/10.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
Arlington
National Harbor
Laurel
Woodbridge
Tysons
Silver Spring
Waldorf
Fredericksburg
Manassas
Gaithersburg
Rockville
Towson
Fairfax
Colonial Beach
Glen Burnie
Linthicum Heights
Reston
Springfield

Why use momondo?

Why should I use momondo to find a flight deal from Lisbon to Washington, D.C.?

Finding the right flight to Washington, D.C. from Lisbon is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Lisbon to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Lisbon to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Lisbon to Washington, D.C.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Lisbon to Washington, D.C..

I’m not ready to book a flight from Lisbon to Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Lisbon and alert you when they change.

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport