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Washington, D.C.

$387+ Cheap flights from Lisbon (LIS) to Washington, D.C. (WAS)

LIS — WAS
Nov 21 — Nov 281
Sat 11/21
Sat 11/28
1 adult, Economy
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Cheapflights Tip: The best prices from Lisbon Humberto Delgado to Washington, D.C. are usually found in January or December, booked 40 days in advance, depart on a Friday or Wednesday and return on a Wednesday

Cheap flight deals from Lisbon to Washington, D.C.

Cheapest flights from Lisbon to Washington, D.C.

Wed 12/22:05 pm -
2 stops29h 05m
Wed 12/96:00 pm -
2 stops21h 25m
Deal found 10/19$581
Tue 12/2211:40 am -
1 stop11h 50m
Sat 1/237:40 pm -
1 stop12h 10m
Deal found 10/18$585
Mon 12/1412:35 pm -
1 stop11h 30m
Sun 1/109:05 pm -
1 stop9h 30m
Deal found 10/17$602
Sun 12/272:00 pm -
1 stop33h 40m
Wed 1/67:40 pm -
1 stop12h 10m
Deal found 10/20$604
Sun 12/132:00 pm -
1 stop33h 30m
Wed 1/67:40 pm -
1 stop12h 10m
Deal found 10/17$605
Tue 12/2911:40 am -
1 stop12h 00m
Wed 1/67:40 pm -
1 stop12h 10m
Deal found 10/20$608
Thu 12/172:00 pm -
1 stop33h 30m
Wed 1/67:40 pm -
1 stop12h 10m
Deal found 10/17$616
Sun 12/132:00 pm -
1 stop33h 30m
Sun 1/107:40 pm -
1 stop34h 00m
Deal found 10/17$618
Thu 11/196:05 am -
1 stop19h 00m
Wed 11/2510:55 pm -
1 stop19h 35m
Deal found 10/20$623
Thu 11/1911:25 am -
Nonstop8h 50m
Wed 11/2510:30 pm -
Nonstop7h 10m
Deal found 10/21$629
Sun 12/272:00 pm -
1 stop33h 30m
Wed 1/67:40 pm -
1 stop12h 10m
Deal found 10/20$632
Thu 12/32:05 pm -
2 stops29h 05m
Thu 12/1010:55 pm -
2 stops19h 05m
Deal found 10/19$634

Find flight deals from Lisbon to Washington, D.C.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$575
(oojo)

One-way from

$387
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$742

Good round-trip deal

$736 or less

Good one-way deal

$958 or less
Provider with most accurate pricing for Lisbon Humberto Delgado-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Washington, D.C. (WAS) flights.
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From Lisbon Humberto Delgado to Washington, D.C. (WAS)
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One-way flight from Lisbon Humberto Delgado to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 12% potential increase in price ($104 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Price to beat on a round-trip flight from Lisbon Humberto Delgado to Washington, D.C. (WAS).
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Price to beat on a one-way flight from Lisbon Humberto Delgado to Washington, D.C. (WAS).
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Lisbon to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LisbonWashington, D.C.

LIS Lisbon Humberto Delgado - DCA Washington, D.C. Reagan-National

LISDCA

Lisbon Humberto Delgado

Tue 4/13

6:35 am-10:17 pm

2 stops20h 42m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$443

LisbonBaltimore

LIS Lisbon Humberto Delgado - BWI Baltimore/Washington

LISBWI

Lisbon Humberto Delgado

Tue 1/19

5:30 am-7:20 pm

2 stops18h 50m

Baltimore/Washington

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$453

LisbonBaltimore

LIS Lisbon Humberto Delgado - BWI Baltimore/Washington

LISBWI

Lisbon Humberto Delgado

Wed 1/13

5:30 am-7:20 pm

2 stops18h 50m

Baltimore/Washington

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$453

LisbonWashington, D.C.

LIS Lisbon Humberto Delgado - DCA Washington, D.C. Reagan-National

LISDCA

Lisbon Humberto Delgado

Tue 4/13

11:05 am-8:19 pm

1 stop14h 14m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$463

LisbonBaltimore

LIS Lisbon Humberto Delgado - BWI Baltimore/Washington

LISBWI

Lisbon Humberto Delgado

Sat 11/21

6:10 pm-6:40 pm

3 stops53h 30m

Baltimore/Washington

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$474

LisbonBaltimore

LIS Lisbon Humberto Delgado - BWI Baltimore/Washington

LISBWI

Lisbon Humberto Delgado

Sat 12/12

7:00 am-5:05 pm

1 stop15h 05m

Baltimore/Washington

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$489

LisbonWashington, D.C.

LIS Lisbon Humberto Delgado - IAD Washington, D.C. Dulles Intl

LISIAD

Lisbon Humberto Delgado

Wed 11/4

12:30 pm-7:05 pm

3 stops59h 35m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$490

LisbonBaltimore

LIS Lisbon Humberto Delgado - BWI Baltimore/Washington

LISBWI

Lisbon Humberto Delgado

Mon 3/29

7:10 am-4:45 pm

1 stop14h 35m

Baltimore/Washington

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$491

LisbonWashington, D.C.

LIS Lisbon Humberto Delgado - DCA Washington, D.C. Reagan-National

LISDCA

Lisbon Humberto Delgado

Sun 3/28

12:45 pm-9:55 pm

1 stop14h 10m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$525

LisbonWashington, D.C.

LIS Lisbon Humberto Delgado - DCA Washington, D.C. Reagan-National

LISDCA

Lisbon Humberto Delgado

Sun 12/27

11:05 am-10:14 pm

1 stop16h 09m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 56 resultsSorted by cheapest first
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  • Most accurate provider: When it comes to deals on Lisbon-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Lisbon-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Lisbon-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Lisbon-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Lisbon-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Lisbon to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Lisbon with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Lisbon to Washington, D.C.

What is the cheapest month to book a flight from Lisbon to Washington, D.C.?

Currently, March is the cheapest month in which you can book a flight from Lisbon to Washington, D.C. (average of $674). Flying from Lisbon to Washington, D.C. in July is currently the most expensive (average of $924). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LIS to WAS?

When flying from Lisbon to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Lisbon to Washington, D.C.?

Airfare is below average for this route at the moment.
Lisbon to Washington, D.C. flights typically cost between $673 and $962 in January.
The cheapest round-trip price found within the last 5 days was $575 on Icelandair (Jan 10-Jan 20).

How often are flights from Lisbon to Washington, D.C. delayed?

About 29% of weekly flights between Lisbon and Washington, D.C. have experienced delays in the past year, with the average delay time being 130 minutes.

What is the most punctual flight time for Lisbon to Washington, D.C. flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Lisbon to Washington, D.C. flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 26% of flights being delayed.

How far ahead should I book a flight from Lisbon to Washington, D.C.?

The best time to book flights from Lisbon to Washington, D.C. is 14 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with United Airlines,TAP AIR PORTUGAL, andLufthansa from Lisbon to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.3
Good
10,404 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.7

Overall

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.3
Good
10,404 reviews
United Airlines
7.3
Good
10,404 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.7

Overall

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
TAP AIR PORTUGAL
7.2
Good
2,384 reviews
United Airlines
7.3
Good
10,404 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.7

Overall

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
8,288 reviews
United Airlines
7.3
Good
10,404 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.7

Overall

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

  • What airport do you fly from for flights from Lisbon to Washington, D.C.?

    Lisbon Humberto Delgado (LIS), located 4.2 mi from the city center, is the airport you fly out of when you book flights from Lisbon to Washington, D.C.. 2 airlines have flights from Humberto Delgado to Washington, D.C. on a regular basis. Booking flights from Lisbon Humberto Delgado to Washington, D.C. should not be difficult; the airport handles an average of 3 outbound flights to Washington, D.C. per day.

  • How long is the flight from Lisbon to Washington, D.C.?

    A quick flight from Lisbon to Washington, D.C. can take about 17h 07m. Icelandair provides one of the quickest options available for as low as $694. The distance from Lisbon to Washington, D.C. is about 3562 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Lisbon to Washington, D.C. round-trip?

    Flying on United Airlines is currently your cheapest option to Washington, D.C., with prices starting at $497. Another option worth looking into is TAP AIR PORTUGAL, starting at $614 round trip. Users have found that United Airlines is 33% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Lisbon to Washington, D.C. one-way?

    $348 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on American Airlines and British Airways, with prices starting from $370 and $378, respectively.

  • What are the most popular routes from Lisbon to Washington, D.C.?

    The most popular flight routes from Lisbon to Washington, D.C. are Lisbon Humberto Delgado - Washington, D.C. Dulles Intl, Lisbon Humberto Delgado - Baltimore/Washington and Lisbon Humberto Delgado - Washington, D.C. Reagan-National.

  • What are the most reliable airlines from Lisbon to Washington, D.C.?

    Consider JetBlue (74%), TAP AIR PORTUGAL (74%) or Air Canada (56%) when booking your flight. These represent the most reliable airlines when flying from Lisbon to Washington, D.C..

  • What are the cheapest flights from Lisbon to Washington, D.C.?

    Looking for the cheapest flight from Lisbon to Washington, D.C.? While on average our users pay $1,563, our data indicates the cheapest price to be $699. The most popular route (Lisbon Humberto Delgado - Washington, D.C. Dulles Intl), is priced around $581.

  • Can I find deals for flights from Lisbon to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Lisbon to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Lisbon to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lisbon to Washington, D.C..

  • Can I find deals for business class flights from Lisbon to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Lisbon to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Lisbon to Washington, D.C.?

    Currently, March is the cheapest month in which you can book a flight from Lisbon to Washington, D.C. (average of $674). Flying from Lisbon to Washington, D.C. in July is currently the most expensive (average of $924). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Arlington
Owings Mills
Lanham
Reston
Herndon
Hyattsville
Rockville
Springfield
Fredericksburg
Falls Church
Tysons
Towson
Oxon Hill
Laurel
Clinton
Hunt Valley
Waldorf
Silver Spring

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Lisbon to Washington, D.C.

Lisbon to Dulles Intl flights

Top 2 airlines flying from Lisbon to Washington, D.C.

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$497Average$881FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$614Average$857FlexibilityNo cancel feeOn-timeN/A

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