HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Lisbon

$266+ Cheap flights from Washington to Lisbon (LIS)

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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIS
févr. 28 — mars 71
sam. 2/28
sam. 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington to Lisbon 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.

Cheap flight deals from Washington to Lisbon

Cheapest flights from Washington to Lisbon
Explore the most affordable flight options available from Washington to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janvier 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 3/18:17 am
SEA
-
LIS
1 stop17h 58m
United Airlines
mar. 3/175:00 am
LIS
-
SEA
1 stop15h 10m
United Airlines
Deal found 1/28$484
This FlightHub deal was found by Cheapflights users on 1/27. 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.
lun. 4/203:40 pm
SEA
-
LIS
2 stops33h 40m
Multiple Airlines
mar. 4/285:05 am
LIS
-
SEA
1 stop15h 15m
Multiple Airlines
Deal found 1/27$485
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/178:00 am
SEA
-
LIS
1 stop18h 15m
United Airlines
ven. 11/275:00 am
LIS
-
SEA
1 stop15h 10m
United Airlines
Deal found 1/28$486
This Delta deal was found by Cheapflights users on 1/27. 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.
dim. 4/197:20 am
SEA
-
LIS
1 stop16h 40m
Delta
mer. 4/295:00 am
LIS
-
SEA
1 stop14h 45m
Delta
Deal found 1/27$487
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 2/257:00 am
SEA
-
LIS
2 stops17h 10m
United Airlines
mer. 3/46:10 am
LIS
-
SEA
1 stop15h 10m
United Airlines
Deal found 1/28$488
This KAYAK deal was found by Cheapflights users on 1/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/183:10 pm
SEA
-
LIS
1 stop24h 20m
Lufthansa
ven. 11/275:00 am
LIS
-
SEA
1 stop15h 10m
Lufthansa
Deal found 1/28$489
This Air Canada deal was found by Cheapflights users on 1/28. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/277:05 pm
PDX
-
LIS
2 stops32h 00m
Air Canada
jeu. 5/75:05 am
LIS
-
PDX
2 stops17h 40m
Air Canada
Deal found 1/28$490
This United Airlines deal was found by Cheapflights users on 1/27. 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.
sam. 4/1811:59 pm
SEA
-
LIS
2 stops26h 31m
United Airlines
lun. 4/275:05 am
LIS
-
SEA
1 stop15h 15m
United Airlines
Deal found 1/27$490
This United Airlines deal was found by Cheapflights users on 1/27. 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. 4/78:05 am
PDX
-
LIS
2 stops41h 15m
United Airlines
mer. 4/1511:25 am
LIS
-
PDX
2 stops41h 17m
United Airlines
Deal found 1/27$491
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 2/281:35 pm
SEA
-
LIS
1 stop20h 20m
British Airways
mar. 3/1011:05 am
LIS
-
SEA
1 stop17h 52m
British Airways
Deal found 1/27$491
This Delta deal was found by Cheapflights users on 1/28. 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.
mar. 4/711:15 pm
PDX
-
LIS
2 stops24h 45m
Delta
jeu. 4/2311:55 am
LIS
-
PDX
1 stop31h 15m
Delta
Deal found 1/28$492
This Delta deal was found by Cheapflights users on 1/27. 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.
lun. 4/205:30 pm
SEA
-
LIS
1 stop17h 15m
Delta
mer. 4/295:00 am
LIS
-
SEA
1 stop14h 45m
Delta
Deal found 1/27$492

Find flight deals from Washington to Lisbon

Keep the following information in mind while searching for Washington to Lisbon flight deals. Data was last updated janvier 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$484
(United Airlines)

One-way from

$266
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$504
Provider with most accurate pricing for Seattle/Tacoma Intl-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Lisbon Humberto Delgado flights.
Search Deals
From Washington to Lisbon Humberto Delgado
Search Deals
One-way flight from Washington to Lisbon Humberto Delgado
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($274 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Lisbon 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 janvier 29, 2026.
Use the filters below to find and compare flights from Washington to Lisbon that are best for you.

Fly from

Washington

Fly to

Lisbon

Route

Depart

Return

Price

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

mer. 3/4

9:19 am-10:15 am

2 stops16h 56m

Lisbon Humberto Delgado

mer. 3/11

6:10 am-2:20 pm

1 stop15h 10m

$488

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

dim. 4/19

11:59 pm-10:30 am

2 stops26h 31m

Lisbon Humberto Delgado

mar. 4/28

5:05 am-12:20 pm

1 stop15h 15m

$490

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

dim. 4/12

5:30 pm-10:50 pm

1 stop21h 20m

Lisbon Humberto Delgado

mer. 4/22

5:00 am-4:30 pm

1 stop19h 30m

$492

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

lun. 4/20

5:30 pm-6:45 pm

1 stop17h 15m

Lisbon Humberto Delgado

mar. 4/28

7:45 pm-4:30 pm

1 stop28h 45m

$492

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

mar. 4/21

6:00 am-6:25 pm

2 stops28h 25m

Lisbon Humberto Delgado

mar. 4/28

8:25 am-8:28 pm

2 stops44h 03m

$495

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

sam. 4/25

1:35 pm-11:10 pm

1 stop25h 35m

Lisbon Humberto Delgado

sam. 5/2

6:35 am-10:26 pm

2 stops23h 51m

$499

PascoLisbon

PSC - LIS

PSCLIS

Pasco Tri Cities

mer. 2/25

5:00 am-10:15 am

2 stops21h 15m

Lisbon Humberto Delgado

dim. 3/1

5:00 am-11:36 am

2 stops38h 36m

$500

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

dim. 4/19

11:59 pm-10:30 am

2 stops26h 31m

Lisbon Humberto Delgado

lun. 4/27

5:05 am-7:00 pm

2 stops21h 55m

$500

PortlandLisbon

PDX - LIS

PDXLIS

Portland

jeu. 2/26

5:05 am-10:15 am

2 stops21h 10m

Lisbon Humberto Delgado

jeu. 3/5

5:00 am-10:45 pm

2 stops25h 45m

$501

PortlandLisbon

PDX - LIS

PDXLIS

Portland

sam. 3/7

10:19 pm-10:15 am

1 stop27h 56m

Lisbon Humberto Delgado

jeu. 3/19

5:00 am-9:52 pm

2 stops23h 52m

$501

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 57 results
1
2
3
...
6

Best time to book a flight from Washington to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from Washington 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 Washington to Lisbon

What is the cheapest month to book a flight from State of Washington to Lisbon?

Currently, January is the cheapest month in which you can book a flight from State of Washington to Lisbon (average of $348). Flying from State of Washington to Lisbon in June is currently the most expensive (average of $975). 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.

Related info for your journey

Find useful and relevant information for your journey from Washington to Lisbon. 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 into for flights to Lisbon from Washington?

    Lisbon Humberto Delgado (LIS), located 4.2 mi from the city center, is the airport you fly into when you book flights from Washington to Lisbon.

  • How long is the flight from State of Washington to Lisbon?

    For as low as $488, United Airlines can have you in Lisbon from State of Washington in 16h 56m. The distance between State of Washington and Lisbon is about 5199 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from State of Washington to Lisbon one-way?

    The cheapest airlines for a one-way flight from State of Washington to Lisbon are Icelandair ($286), British Airways ($317), and TAP AIR PORTUGAL ($360).

  • What are the most popular routes from State of Washington to Lisbon?

    When deciding which route to take from State of Washington to Lisbon consider Seattle/Tacoma Intl - Lisbon Humberto Delgado, Portland - Lisbon Humberto Delgado or Spokane - Lisbon Humberto Delgado as they are the most popular.

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

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

  • How can I find direct flights from Washington to Lisbon?

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

  • Can I find deals for business class flights from Washington to Lisbon?

    Yes. Cheapflights offers flight deals from Washington to Lisbon 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 State of Washington to Lisbon?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to Lisbon (average of $348). Flying from State of Washington to Lisbon in June is currently the most expensive (average of $975). 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
Fátima
Oeiras
Ericeira
Beja
Costa da Caparica
Torres Vedras
Nazaré
Sesimbra
Colares

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 Washington to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Lisbon flights
Newark to Lisbon flights
Boston to Lisbon flights
Dulles Intl to Lisbon flights
LaGuardia to Lisbon flights
Newark to Porto flights
O'Hare Intl to Lisbon flights
John F Kennedy Intl to Porto flights
San Francisco to Lisbon flights
Miami to Lisbon flights
Boston to Ponta Delgada flights
Reagan-National to Lisbon flights
Baltimore to Lisbon flights
Dallas/Fort Worth to Lisbon flights
Philadelphia to Lisbon flights
Seattle to Lisbon flights
Boston to Porto flights
Los Angeles to Lisbon flights
Newark to Ponta Delgada flights
LaGuardia to Porto flights
John F Kennedy Intl to Ponta Delgada flights
Minneapolis to Lisbon flights
Denver to Lisbon flights
Atlanta to Lisbon flights
Love Field to Lisbon flights
Charlotte to Lisbon flights
Dulles Intl to Porto flights
Midway to Lisbon flights
Reagan-National to Porto flights
Sky Harbor Intl to Lisbon flights
Hobby to Lisbon flights
Fort Lauderdale to Lisbon flights
San Jose to Lisbon flights
Newark to Funchal flights
Orlando to Lisbon flights
John F Kennedy Intl to Funchal flights
Baltimore to Porto flights
Raleigh to Lisbon flights
Austin to Lisbon flights
Santa Ana to Lisbon flights
LaGuardia to Ponta Delgada flights
Ontario to Lisbon flights
Portland to Lisbon flights
Newark to Faro flights
John F Kennedy Intl to Faro flights
Tampa to Lisbon flights
Boston to Funchal flights
Detroit to Lisbon flights
George Bush Intcntl to Lisbon flights
Cleveland to Lisbon flights

Top 10 airlines flying from Washington to Lisbon

Discover the top 10 airlines that operate flights from Washington to Lisbon. 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 janvier 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$348Average$530FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$486Average$787FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$488Average$759FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$498Average$945FlexibilityNo cancel feeOn-time69%
DeltaCheapest$499Average$843FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$543Average$1,056FlexibilityNo cancel feeOn-time67%
Air FranceCheapest$546Average$950FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$558Average$1,126FlexibilityNo cancel feeOn-time71%
KLMCheapest$560Average$873FlexibilityNo cancel feeOn-time75%
SWISSCheapest$562Average$1,002FlexibilityNo cancel feeOn-time79%

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.