HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Lisbon

$257+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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 December 18, 2025.

This Mytrip deal was found by Cheapflights users on 12/17. 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 12/302:00 pmSEA - LIS
1 stop22h 00mMultiple Airlines
Wed 1/1411:20 amLIS - SEA
2 stops18h 46mMultiple Airlines
Deal found 12/17$506
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/303:50 pmSEA - LIS
2 stops34h 25mUnited Airlines
Wed 1/1411:20 amLIS - SEA
2 stops37h 09mUnited Airlines
Deal found 12/17$514
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/263:10 pmSEA - LIS
1 stop14h 10mUnited Airlines
Sat 1/2411:20 amLIS - SEA
2 stops43h 23mUnited Airlines
Deal found 12/16$598
This Air Canada deal was found by Cheapflights users on 12/17. 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.
Fri 12/263:15 pmPDX - LIS
2 stops33h 40mMultiple Airlines
Tue 1/276:10 amLIS - PDX
2 stops40h 30mMultiple Airlines
Deal found 12/17$602
This Finnair deal was found by Cheapflights users on 12/16. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2611:04 pmSEA - LIS
1 stop26h 01mMultiple Airlines
Sat 1/2410:40 amLIS - SEA
1 stop19h 27mMultiple Airlines
Deal found 12/16$622
This oojo deal was found by Cheapflights users on 12/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:35 pmSEA - LIS
1 stop21h 45mIcelandair
Sun 1/119:20 pmLIS - SEA
1 stop27h 40mIcelandair
Deal found 12/15$631
This Air France deal was found by Cheapflights users on 12/16. 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 12/283:05 pmSEA - LIS
1 stop35h 30mMultiple Airlines
Thu 1/812:20 pmLIS - SEA
1 stop33h 05mMultiple Airlines
Deal found 12/16$640
This Air France deal was found by Cheapflights users on 12/16. 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.
Wed 12/312:05 pmSEA - LIS
1 stop19h 25mMultiple Airlines
Sun 1/115:00 amLIS - SEA
1 stop14h 50mMultiple Airlines
Deal found 12/16$675
This Delta deal was found by Cheapflights users on 12/16. 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.
Wed 12/317:10 amSEA - LIS
2 stops20h 10mDelta
Sun 1/115:00 amLIS - SEA
1 stop14h 50mDelta
Deal found 12/16$680
This Air France deal was found by Cheapflights users on 12/17. 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.
Wed 12/312:05 pmSEA - LIS
1 stop17h 05mAir France
Sun 1/115:30 amLIS - SEA
1 stop15h 55mAir France
Deal found 12/17$681
This Delta deal was found by Cheapflights users on 12/17. 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.
Wed 12/317:00 amPDX - LIS
1 stop17h 40mDelta
Sun 1/115:30 amLIS - PDX
2 stops21h 20mDelta
Deal found 12/17$754
This KLM deal was found by Cheapflights users on 12/16. 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.
Fri 12/261:25 pmPDX - LIS
1 stop25h 45mKLM
Tue 1/273:30 pmLIS - PDX
1 stop27h 55mKLM
Deal found 12/16$755

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$472
(Mytrip)

One-way from

$257
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$1,107
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. 22% potential increase in price ($250 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 18, 2025.
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

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Tue 3/3

7:00 am-9:20 am

2 stops42h 20m

Lisbon Humberto Delgado

Tue 3/10

11:20 am-5:51 pm

2 stops37h 31m

$481

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 2/3

8:40 am-8:10 am

2 stops15h 30m

Lisbon Humberto Delgado

Mon 2/16

5:00 am-12:10 pm

1 stop15h 10m

$484

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sat 2/7

1:40 pm-5:30 pm

1 stop19h 50m

Lisbon Humberto Delgado

Wed 2/18

11:25 am-11:40 am

1 stop32h 15m

$486

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 2/3

1:40 pm-3:10 pm

1 stop17h 30m

Lisbon Humberto Delgado

Mon 2/16

11:25 am-11:40 am

1 stop32h 15m

$486

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Thu 1/22

8:40 am-8:10 am

2 stops15h 30m

Lisbon Humberto Delgado

Fri 1/30

6:10 am-1:20 pm

1 stop15h 10m

$486

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Wed 1/21

2:10 pm-3:10 pm

1 stop17h 00m

Lisbon Humberto Delgado

Mon 1/26

11:25 am-11:50 am

1 stop32h 25m

$486

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 1/19

8:10 am-9:20 am

1 stop17h 10m

Lisbon Humberto Delgado

Thu 1/29

5:00 am-12:10 pm

1 stop15h 10m

$486

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 2/2

2:15 pm-3:10 pm

1 stop16h 55m

Lisbon Humberto Delgado

Tue 2/17

5:00 am-11:40 am

1 stop14h 40m

$486

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Thu 2/5

8:40 am-8:10 am

2 stops15h 30m

Lisbon Humberto Delgado

Tue 2/17

11:20 am-7:03 pm

2 stops39h 43m

$487

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 2/2

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Tue 2/10

11:25 am-11:25 am

1 stop32h 00m

$487

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 54 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.

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

Find hourly flight availability from Washington to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

A simple way to save on the total cost of your ticket is to fly from State of Washington to Lisbon in the afternoon. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from State of Washington to Lisbon?

Use this chart to determine the cheapest time to fly round-trip from Washington to Lisbon. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their State of Washington to Lisbon flight should consider departing on Thursday afternoons when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 $484, Air Canada can have you in Lisbon from State of Washington in 15h 30m. 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 ($322), British Airways ($350), 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
Costa da Caparica
Torres Vedras
Beja
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
San Francisco to Lisbon flights
Los Angeles to Lisbon flights
Miami to Lisbon flights
Newark to Porto flights
O'Hare Intl to Lisbon flights
Boston to Ponta Delgada flights
John F Kennedy Intl to Porto flights
Reagan-National to Lisbon flights
Baltimore to Lisbon flights
Seattle to Lisbon flights
Dallas/Fort Worth to Lisbon flights
Philadelphia to Lisbon flights
John F Kennedy Intl to Ponta Delgada flights
Boston to Porto flights
Atlanta to Lisbon flights
Minneapolis to Lisbon flights
Denver to Lisbon flights
Newark to Ponta Delgada flights
LaGuardia to Porto flights
Midway to Lisbon flights
Love Field to Lisbon flights
Dulles Intl to Porto flights
Charlotte to Lisbon flights
Hobby to Lisbon flights
Portland to Lisbon flights
Ontario to Lisbon flights
Sky Harbor Intl to Lisbon flights
Reagan-National to Porto flights
Fort Lauderdale to Lisbon flights
Santa Ana to Lisbon flights
Baltimore to Porto flights
Orlando to Lisbon flights
Austin to Lisbon flights
John F Kennedy Intl to Funchal flights
San Jose to Lisbon flights
Tampa to Lisbon flights
Raleigh to Lisbon flights
San Diego to Lisbon flights
John F Kennedy Intl to Faro flights
George Bush Intcntl to Lisbon flights
Boston to Funchal flights
Newark to Funchal flights
Dallas/Fort Worth to Porto flights
LaGuardia to Funchal 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$355Average$554FlexibilityNo cancel feeOn-time76%
DeltaCheapest$505Average$957FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$508Average$816FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$513Average$957FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$516Average$786FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$543Average$1,004FlexibilityNo cancel feeOn-time67%
Air FranceCheapest$553Average$942FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$558Average$1,030FlexibilityNo cancel feeOn-time71%
KLMCheapest$560Average$886FlexibilityNo cancel feeOn-time75%
SWISSCheapest$562Average$940FlexibilityNo 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.