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Washington, D.C.

$334+ Cheap flights from Lisbon (LIS) to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — WAS
May 24 — May 311
Sun 5/24
Sun 5/31
1 adult, Economy
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Find cheap flights from Lisbon to Washington, D.C. with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Lisbon Humberto Delgado to Washington, D.C. are usually found in September or January, booked 90 days in advance, depart on a Wednesday or Thursday and return on a Monday

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

Cheapest flights from Lisbon to Washington, D.C.
Explore the most affordable flight options available from Lisbon to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.

This FlightHub deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:40 pm
LIS
-
IAD
1 stop29h 20m
Royal Air Maroc
Wed 10/289:45 pm
IAD
-
LIS
1 stop15h 10m
Royal Air Maroc
Deal found 4/22$679
This Mytrip deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/199:15 pm
LIS
-
IAD
3 stops30h 00m
Multiple Airlines
Tue 5/268:30 pm
IAD
-
LIS
2 stops19h 05m
Multiple Airlines
Deal found 4/18$680
This Justfly.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2811:40 am
LIS
-
IAD
Nonstop8h 30m
TAP AIR PORTUGAL
Mon 11/25:25 pm
IAD
-
LIS
Nonstop7h 10m
TAP AIR PORTUGAL
Deal found 4/22$683
This Gotogate deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/315:05 am
LIS
-
IAD
1 stop13h 30m
Lufthansa
Mon 9/75:55 pm
IAD
-
LIS
1 stop16h 35m
Lufthansa
Deal found 4/23$688
This Gotogate deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:25 am
LIS
-
IAD
1 stop13h 40m
Lufthansa
Tue 5/2610:20 pm
IAD
-
LIS
1 stop19h 25m
Lufthansa
Deal found 4/20$699
This Royal Air Maroc deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Royal Air Maroc is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:40 pm
LIS
-
IAD
1 stop29h 20m
Royal Air Maroc
Mon 11/28:45 pm
IAD
-
LIS
1 stop15h 10m
Royal Air Maroc
Deal found 4/22$702
This Gotogate deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/215:05 am
LIS
-
IAD
1 stop13h 30m
Lufthansa
Wed 5/2710:20 pm
IAD
-
LIS
1 stop19h 25m
Lufthansa
Deal found 4/19$704
This Lufthansa deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/265:00 am
LIS
-
IAD
1 stop15h 50m
Lufthansa
Sat 1/210:05 pm
IAD
-
LIS
Nonstop7h 10m
Lufthansa
Deal found 4/23$705
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:05 am
LIS
-
IAD
1 stop16h 00m
United Airlines
Mon 10/2611:05 pm
IAD
-
LIS
Nonstop7h 10m
United Airlines
Deal found 4/22$706
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/256:30 am
LIS
-
IAD
1 stop14h 50m
American Airlines
Sat 1/29:45 pm
IAD
-
LIS
1 stop33h 20m
American Airlines
Deal found 4/23$708
This United Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:00 am
LIS
-
BWI
2 stops34h 19m
United Airlines
Mon 11/96:17 am
BWI
-
LIS
2 stops20h 53m
United Airlines
Deal found 4/23$708
This United Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/55:05 am
LIS
-
IAD
1 stop13h 30m
United Airlines
Mon 6/1510:20 pm
IAD
-
LIS
1 stop19h 25m
United Airlines
Deal found 4/23$709

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

Discover tips and strategies to find the most affordable flight options for your journey from Lisbon (LIS) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$679
(FlightHub)

One-way from

$334
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$654

Good round-trip deal

$872 or less

Good one-way deal

$692 or less
Provider with most accurate pricing for Lisbon Humberto Delgado-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Washington, D.C. (WAS) flights.
Search Deals
From Lisbon Humberto Delgado to Washington, D.C. (WAS)
Search Deals
One-way flight from Lisbon Humberto Delgado to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($98 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Lisbon Humberto Delgado to Washington, D.C. (WAS).
Search Deals
Price to beat on a one-way flight from Lisbon Humberto Delgado to Washington, D.C. (WAS).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Lisbon to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 24, 2026.
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 - IAD

LISIAD

Lisbon Humberto Delgado

Mon 5/11

5:05 am-4:05 pm

1 stop16h 00m

Washington, D.C. Dulles Intl

Tue 5/26

10:25 pm-10:30 am

Nonstop7h 05m

$706

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Sun 5/3

7:45 pm-3:35 pm

1 stop24h 50m

Washington, D.C. Dulles Intl

Mon 5/11

9:45 pm-10:25 pm

1 stop19h 40m

$717

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Tue 5/5

5:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Tue 5/12

9:45 pm-2:55 pm

1 stop12h 10m

$717

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Mon 4/27

5:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Tue 5/5

6:15 pm-11:15 am

1 stop12h 00m

$717

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Mon 6/1

5:00 am-5:07 pm

2 stops17h 07m

Washington, D.C. Reagan-National

Mon 6/8

3:15 pm-11:15 am

2 stops15h 00m

$722

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Mon 5/11

5:00 am-5:36 pm

2 stops17h 36m

Washington, D.C. Reagan-National

Tue 5/26

12:59 pm-11:15 am

2 stops17h 16m

$722

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Fri 5/8

11:55 am-11:35 pm

2 stops16h 40m

Washington, D.C. Reagan-National

Thu 6/4

12:59 pm-10:45 am

1 stop16h 46m

$726

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Thu 5/7

5:00 am-5:36 pm

2 stops17h 36m

Washington, D.C. Reagan-National

Sun 5/24

5:00 pm-10:45 am

1 stop12h 45m

$726

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Thu 5/14

5:00 am-5:36 pm

2 stops17h 36m

Washington, D.C. Reagan-National

Wed 6/3

5:00 pm-10:45 am

1 stop12h 45m

$726

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Thu 5/14

5:35 am-7:16 pm

2 stops18h 41m

Baltimore/Washington

Wed 6/3

7:59 pm-10:45 am

1 stop9h 46m

$728

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from Lisbon to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Lisbon to Washington, D.C. in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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 77 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.

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

Currently, September is the cheapest month in which you can book a flight from Lisbon to Washington, D.C. (average of $322). Flying from Lisbon to Washington, D.C. in July is currently the most expensive (average of $644). 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?

Find hourly flight availability from Lisbon to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2026.

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.

Weekly flight availability from Lisbon to Washington, D.C.

Explore weekly flight availability from Lisbon to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 24, 2026.

The most flights from LIS to WAS are scheduled on a Friday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

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

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

About 32% of weekly flights between Lisbon and Washington, D.C. have experienced delays in the past year, with the average delay time being 132 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 Saturday 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 28% of flights being delayed.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated April 24, 2026.
Get a feel of what it's like to fly with United Airlines and TAP AIR PORTUGAL 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
7.4
Good
9,637 reviews

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,637 reviews
United Airlines
7.4
Good
9,637 reviews

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
TAP AIR PORTUGAL
7.2
Good
2,218 reviews
United Airlines
7.4
Good
9,637 reviews

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Related info for your journey

Find useful and relevant information for your journey from Lisbon to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 5 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 15h. Lufthansa provides one of the quickest options available for as low as $733. The distance from Lisbon to Washington, D.C. is about 3580 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 $562 round trip. Users have found that United Airlines is 29% cheaper than the other options available to this destination.

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

    $354 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on TAP AIR PORTUGAL and British Airways, with prices starting from $365 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 Air Canada (67%), United Airlines (67%) or Lufthansa (67%) 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 $1,494, our data indicates the cheapest price to be $585. The most popular route (Lisbon Humberto Delgado - Washington, D.C. Dulles Intl), is priced around $688.

  • 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, September is the cheapest month in which you can book a flight from Lisbon to Washington, D.C. (average of $322). Flying from Lisbon to Washington, D.C. in July is currently the most expensive (average of $644). 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
Tysons
Owings Mills
Springfield
Arlington
Woodbridge
Silver Spring
Herndon
Rockville
Hyattsville
Fredericksburg
Hanover
Laurel
Manassas
Largo
Upper Marlboro
Waldorf
Bowie
Clinton
Hunt Valley

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Lisbon to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Lisbon to Dulles Intl flights

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

Discover the top 2 airlines that operate flights from Lisbon to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$497Average$789FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$562Average$705FlexibilityNo cancel feeOn-timeN/A

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