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Washington, D.C.

$353+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — WAS
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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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”

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Cheapflights Tip: The best prices from Lisbon Humberto Delgado to Washington, D.C. are usually found in September or February, booked 48 days in advance, depart on a Friday or Wednesday and return on a Tuesday

Cheap 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 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$523
(Finnair)

One-way from

$353
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$655

Good round-trip deal

$516 or less

Good one-way deal

$539 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. 17% potential increase in price ($137 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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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Find 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 30, 2025.

This British Airways deal was found by Cheapflights users on 4/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/96:35 amLIS - IAD
1 stop13h 25mMultiple Airlines
Thu 5/1510:40 pmIAD - LIS
1 stop19h 25mMultiple Airlines
Deal found 4/28$524
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/95:00 amLIS - IAD
1 stop15h 35mDelta
Sun 5/259:20 pmIAD - LIS
1 stop12h 30mDelta
Deal found 4/28$533
This British Airways deal was found by Cheapflights users on 4/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/811:05 amLIS - IAD
1 stop14h 00mBritish Airways
Sat 5/2410:45 pmIAD - LIS
1 stop19h 25mBritish Airways
Deal found 4/28$537
This British Airways deal was found by Cheapflights users on 4/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/811:05 amLIS - BWI
1 stop13h 30mBritish Airways
Sat 5/249:20 pmBWI - LIS
1 stop20h 50mBritish Airways
Deal found 4/28$537
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/195:00 amLIS - DCA
2 stops18h 07mDelta
Wed 6/411:00 amDCA - LIS
2 stops16h 50mDelta
Deal found 4/28$538
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/105:00 amLIS - BWI
2 stops17h 12mDelta
Mon 5/262:29 pmBWI - LIS
1 stop15h 16mDelta
Deal found 4/29$543
This Air France deal was found by Cheapflights users on 4/28. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1110:00 amLIS - IAD
1 stop14h 39mAir France
Mon 5/269:20 pmIAD - LIS
1 stop12h 30mAir France
Deal found 4/28$549
This KLM deal was found by Cheapflights users on 4/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1010:00 amLIS - DCA
1 stop13h 07mKLM
Mon 5/261:15 pmDCA - LIS
1 stop16h 30mKLM
Deal found 4/28$551
This Virgin Atlantic deal was found by Cheapflights users on 4/28. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1110:00 amLIS - IAD
2 stops19h 28mVirgin Atlantic
Mon 5/266:00 amIAD - LIS
2 stops23h 45mVirgin Atlantic
Deal found 4/28$555
This Virgin Atlantic deal was found by Cheapflights users on 4/28. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1110:00 amLIS - DCA
2 stops17h 42mVirgin Atlantic
Mon 5/262:59 pmDCA - LIS
1 stop14h 46mVirgin Atlantic
Deal found 4/28$555
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/85:55 amLIS - IAD
1 stop15h 20mSWISS
Mon 6/168:45 pmIAD - LIS
1 stop21h 35mSWISS
Deal found 4/28$570
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Sat 5/1011:25 amLIS - IAD
1 stop14h 43mUnited Airlines
Mon 5/2610:15 pmIAD - LIS
Nonstop7h 15mUnited Airlines
Deal found 4/29$574

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 30, 2025.
Use the filters below to find and compare flights from Lisbon to Washington, D.C. that are best for you.

Fly from

Lisbon

Fly to

Washington, D.C.

Route

Depart

Return

Price

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Fri 5/9

6:35 am-3:00 pm

1 stop13h 25m

Washington, D.C. Dulles Intl

Thu 5/15

10:40 pm-11:05 pm

1 stop19h 25m

$524

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Fri 5/9

5:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Sun 5/25

9:20 pm-2:50 pm

1 stop12h 30m

$533

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Sun 5/18

7:20 am-8:10 pm

1 stop17h 50m

Washington, D.C. Dulles Intl

Thu 8/7

7:25 pm-6:10 pm

1 stop17h 45m

$538

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Mon 5/19

5:00 am-6:07 pm

2 stops18h 07m

Washington, D.C. Reagan-National

Wed 6/4

11:00 am-8:50 am

2 stops16h 50m

$538

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Sat 5/10

5:00 am-5:12 pm

2 stops17h 12m

Baltimore/Washington

Mon 5/26

2:29 pm-10:45 am

1 stop15h 16m

$543

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Sun 5/11

10:00 am-7:39 pm

1 stop14h 39m

Washington, D.C. Dulles Intl

Mon 5/26

9:20 pm-2:50 pm

1 stop12h 30m

$549

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Sat 5/10

10:00 am-6:07 pm

1 stop13h 07m

Washington, D.C. Reagan-National

Mon 5/26

1:15 pm-10:45 am

1 stop16h 30m

$551

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Sun 5/11

10:00 am-12:28 am

2 stops19h 28m

Washington, D.C. Dulles Intl

Mon 5/26

6:00 am-10:45 am

2 stops23h 45m

$555

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Sun 5/11

10:00 am-10:42 pm

2 stops17h 42m

Washington, D.C. Reagan-National

Mon 5/26

2:59 pm-10:45 am

1 stop14h 46m

$555

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Sun 6/8

5:55 am-4:15 pm

1 stop15h 20m

Washington, D.C. Dulles Intl

Mon 6/16

8:45 pm-11:20 pm

1 stop21h 35m

$570

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 60 results
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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*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Lisbon-Washington, D.C. flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.?

Use this chart to determine the optimal time to book a round-trip flight from Lisbon to Washington, D.C.. Price data was last updated on April 25, 2025.

The best time to book flights from Lisbon to Washington, D.C. is 48 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, August is the cheapest month in which you can book a flight from Lisbon to Washington, D.C. (average of $309). Flying from Lisbon to Washington, D.C. in June is currently the most expensive (average of $373). 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 30, 2025.

A simple way to save on the total cost of your ticket is to fly from Lisbon to Washington, D.C. in the afternoon. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight at noon.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 30, 2025.
Get a feel of what it's like to fly with Delta, KLM and LOT from Lisbon to Washington, D.C. by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
LOT
7.6
Good
1,069 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.. 3 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 4 outbound flights to Washington, D.C. per day.

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

    Flying on Finnair is currently your cheapest option to Washington, D.C., with prices starting at $523. Additional round-trip tickets that might be worth considering are offered by Delta and British Airways, with the lowest prices starting at $533 and $538, respectively. Users have found that Finnair is 21% cheaper than the other options available to this destination.

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

    $377 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Aer Lingus and WorldTicket, with prices starting from $444 and $477, 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 - Washington, D.C. Reagan-National and Lisbon Humberto Delgado - Baltimore/Washington.

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

    Consider Air Canada (72%), United Airlines (72%) or Lufthansa (72%) 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 $1,269, our data indicates the cheapest price to be $348. The most popular route (Lisbon Humberto Delgado - Washington, D.C. Dulles Intl), is priced around $525.

  • 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, August is the cheapest month in which you can book a flight from Lisbon to Washington, D.C. (average of $309). Flying from Lisbon to Washington, D.C. in June is currently the most expensive (average of $373). 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 Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Alexandria
Arlington
Woodbridge
Tysons
Fairfax
Springfield
Rockville
Fredericksburg
Silver Spring
Gaithersburg
Linthicum Heights
Falls Church
Laurel
Easton
Towson
Herndon
Bowie
National Harbor
Oxon Hill
Reston

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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
Lisbon to Reagan-National flights
Porto to Reagan-National flights
Porto to Dulles Intl flights

Top 3 airlines flying from Lisbon to Washington, D.C.

Discover the top 3 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$534Average$635FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$536Average$779FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$541Average$734FlexibilityNo cancel feeOn-timeN/A

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