HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$370+ 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — WAS
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 Sunday or Wednesday 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 diciembre 12, 2025.

This KLM deal was found by Cheapflights users on 12/11. 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.
vie. 12/263:30 pmLIS - IAD
1 stop29h 35mMultiple Airlines
dom. 1/116:50 pmIAD - LIS
1 stop17h 40mMultiple Airlines
Deal found 12/11$610
This United Airlines deal was found by Cheapflights users on 12/10. 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.
mar. 12/235:00 amLIS - IAD
1 stop15h 50mUnited Airlines
sáb. 1/310:05 pmIAD - LIS
Nonstop7h 10mUnited Airlines
Deal found 12/10$616
This KLM deal was found by Cheapflights users on 12/11. 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.
sáb. 12/275:00 amLIS - IAD
1 stop16h 05mMultiple Airlines
lun. 3/1610:45 pmIAD - LIS
1 stop14h 45mMultiple Airlines
Deal found 12/11$617
This United Airlines deal was found by Cheapflights users on 12/11. 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.
mié. 12/245:00 amLIS - IAD
1 stop14h 35mUnited Airlines
jue. 1/89:45 amIAD - LIS
1 stop18h 35mUnited Airlines
Deal found 12/11$619
This KLM deal was found by Cheapflights users on 12/11. 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.
vie. 12/2610:55 amLIS - DCA
1 stop12h 24mKLM
dom. 1/116:00 amDCA - LIS
1 stop21h 00mKLM
Deal found 12/11$619
This United Airlines deal was found by Cheapflights users on 12/11. 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.
vie. 12/265:00 amLIS - IAD
1 stop20h 15mUnited Airlines
lun. 3/1612:55 pmIAD - LIS
2 stops30h 35mUnited Airlines
Deal found 12/11$620
This British Airways deal was found by Cheapflights users on 12/11. 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.
mié. 12/247:05 amLIS - BWI
1 stop16h 40mBritish Airways
dom. 1/118:35 pmBWI - LIS
1 stop16h 10mBritish Airways
Deal found 12/11$620
This United Airlines deal was found by Cheapflights users on 12/11. 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.
mié. 12/2411:55 amLIS - IAD
Nonstop8h 35mUnited Airlines
lun. 1/125:38 pmIAD - LIS
1 stop9h 32mUnited Airlines
Deal found 12/11$621
This United Airlines deal was found by Cheapflights users on 12/11. 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.
jue. 12/2510:55 amLIS - IAD
1 stop15h 04mUnited Airlines
mar. 1/135:38 pmIAD - LIS
1 stop9h 32mUnited Airlines
Deal found 12/11$625
This United Airlines deal was found by Cheapflights users on 12/11. 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.
jue. 12/2510:55 amLIS - DCA
1 stop28h 26mUnited Airlines
dom. 1/114:15 pmDCA - LIS
1 stop10h 55mUnited Airlines
Deal found 12/11$625
This United Airlines deal was found by Cheapflights users on 12/11. 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.
mié. 12/2411:55 amLIS - IAD
Nonstop8h 35mUnited Airlines
dom. 1/116:00 pmIAD - LIS
1 stop12h 35mUnited Airlines
Deal found 12/11$626
This United Airlines deal was found by Cheapflights users on 12/11. 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.
mié. 12/2410:15 amLIS - DCA
1 stop12h 49mUnited Airlines
lun. 1/124:15 pmDCA - LIS
1 stop10h 55mUnited Airlines
Deal found 12/11$627

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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$539
(oojo)

One-way from

$370
(American Airlines)

Popular in

July

Cheapest in

September

Average price

$637

Good round-trip deal

$713 or less

Good one-way deal

$607 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. 10% potential increase in price ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 diciembre 12, 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

jue. 2/26

5:00 am-3:50 pm

1 stop15h 50m

Washington, D.C. Dulles Intl

mar. 3/3

8:30 pm-2:35 pm

1 stop13h 05m

$591

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

lun. 5/4

7:15 am-4:50 pm

1 stop14h 35m

Washington, D.C. Dulles Intl

vie. 5/8

8:20 pm-3:35 pm

1 stop14h 15m

$592

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

jue. 2/26

11:25 am-3:15 pm

Nonstop8h 50m

Washington, D.C. Dulles Intl

mar. 3/3

5:30 pm-5:35 am

Nonstop7h 05m

$593

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

jue. 1/15

5:00 am-8:15 pm

1 stop20h 15m

Washington, D.C. Dulles Intl

mié. 1/28

5:38 pm-8:10 am

1 stop9h 32m

$594

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

mar. 3/17

5:00 am-9:15 pm

1 stop20h 15m

Washington, D.C. Dulles Intl

mar. 4/7

8:45 pm-11:20 pm

1 stop21h 35m

$594

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

mar. 3/17

5:00 am-4:50 pm

1 stop15h 50m

Washington, D.C. Dulles Intl

mar. 4/7

1:05 pm-9:20 am

2 stops15h 15m

$597

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

jue. 2/26

5:00 am-8:15 pm

1 stop20h 15m

Washington, D.C. Dulles Intl

mar. 3/3

8:15 am-9:20 am

2 stops20h 05m

$598

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

jue. 3/12

5:00 am-7:35 pm

2 stops18h 35m

Washington, D.C. Reagan-National

lun. 3/16

4:30 pm-8:10 am

1 stop11h 40m

$599

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

jue. 2/26

5:00 am-9:27 pm

2 stops21h 27m

Baltimore/Washington

lun. 3/2

6:30 am-8:10 am

2 stops20h 40m

$599

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

jue. 2/5

5:00 am-2:35 pm

1 stop14h 35m

Washington, D.C. Dulles Intl

sáb. 2/14

5:45 pm-5:40 pm

1 stop18h 55m

$602

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 55 results
1
2
3
...
6

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 December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Lisbon-Washington, D.C. flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 5, 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, February is the cheapest month in which you can book a flight from Lisbon to Washington, D.C. (average of $493). Flying from Lisbon to Washington, D.C. in July is currently the most expensive (average of $695). 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 diciembre 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Lisbon to Washington, D.C. in the evening. If you’re flexible enough to do this you can expect to save up to 42% on your trip compared to booking a flight in the morning.

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 diciembre 12, 2025.

The most flights from LIS to WAS are scheduled on a Monday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

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

About 30% of weekly flights between Lisbon and Washington, D.C. have experienced delays in the past year, with the average delay time being 135 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?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday 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.

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 diciembre 12, 2025.
Get a feel of what it's like to fly with United Airlines, TAP AIR PORTUGAL, and Lufthansa 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
9,095 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
TAP AIR PORTUGAL
7.1
Good
2,089 reviews
United Airlines
7.4
Good
9,095 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
Lufthansa
6.8
Okay
7,626 reviews
United Airlines
7.4
Good
9,095 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
British Airways
6.7
Okay
7,571 reviews
United Airlines
7.4
Good
9,095 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

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 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 8h 50m. TAP AIR PORTUGAL provides one of the quickest options available for as low as $593. 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 TAP AIR PORTUGAL is currently your cheapest option to Washington, D.C., with prices starting at $561. Another option worth looking into is United Airlines, starting at $573 round trip. Users have found that TAP AIR PORTUGAL is 18% cheaper than the other options available to this destination.

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

    $367 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 JetBlue and Aer Lingus, with prices starting from $395 and $416, 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 $850, our data indicates the cheapest price to be $543. The most popular route (Lisbon Humberto Delgado - Washington, D.C. Dulles Intl), is priced around $572.

  • 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, February is the cheapest month in which you can book a flight from Lisbon to Washington, D.C. (average of $493). Flying from Lisbon to Washington, D.C. in July is currently the most expensive (average of $695). 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
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Fairfax
Linthicum Heights
Manassas
Rockville
Laurel
Towson
National Harbor
Bowie
Largo
McLean
Clinton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 Dulles Intl flights
Porto to Reagan-National 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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$493Average$644FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$561Average$721FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$573Average$777FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.