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Lisbon

$314+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIS
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
1 adult, Economy
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Cheap flight deals from Washington to Lisbon

Keep the following information in mind while searching for Washington to Lisbon flight deals. Data was last updated April 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$689
(United Airlines)

One-way from

$314
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$908
Provider with most accurate pricing for Seattle/Tacoma Intl-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Lisbon Humberto Delgado flights.
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From Washington to Lisbon Humberto Delgado
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One-way flight from Washington to Lisbon Humberto Delgado
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Highest demand for flights based on searches. 16% potential increase in price ($199 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 2, 2025.

This United Airlines deal was found by Cheapflights users on 4/1. 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 11/84:00 pmGEG - LIS
2 stops34h 15mUnited Airlines
Mon 11/2410:15 amLIS - GEG
2 stops18h 54mUnited Airlines
Deal found 4/1$646
This United deal was found by Cheapflights users on 4/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/162:15 pmPDX - LIS
2 stops36h 55mUnited Airlines
Thu 10/3010:15 amLIS - PDX
1 stop17h 35mUnited Airlines
Deal found 4/1$675
This Cheapflightsfares deal was found by Cheapflights users on 4/1. 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.
Wed 10/157:25 pmPDX - LIS
1 stop19h 45mBritish Airways
Wed 10/297:05 amLIS - PDX
1 stop17h 30mBritish Airways
Deal found 4/1$678
This Iberia deal was found by Cheapflights users on 4/1. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/137:25 pmPDX - LIS
1 stop14h 30mMultiple Airlines
Tue 10/218:45 pmLIS - PDX
2 stops32h 10mMultiple Airlines
Deal found 4/1$682
This Delta deal was found by Cheapflights users on 4/2. 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.
Tue 10/287:00 amPDX - LIS
1 stop18h 00mDelta
Mon 11/1010:00 amLIS - PDX
1 stop21h 29mDelta
Deal found 4/2$692
This Air Canada deal was found by Cheapflights users on 4/1. 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.
Wed 9/176:15 amPDX - LIS
2 stops20h 55mAir Canada
Thu 9/257:30 amLIS - PDX
2 stops19h 16mAir Canada
Deal found 4/1$695
This Lufthansa deal was found by Cheapflights users on 4/1. 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.
Sun 8/173:25 pmPDX - LIS
2 stops33h 55mLufthansa
Fri 8/2911:25 amLIS - PDX
2 stops19h 31mLufthansa
Deal found 4/1$697
This Ovago deal was found by Cheapflights users on 4/1. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/314:00 pmSEA - LIS
1 stop20h 40mMultiple Airlines
Tue 9/99:05 pmLIS - SEA
1 stop24h 45mMultiple Airlines
Deal found 4/1$699
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Mon 4/281:30 pmSEA - LIS
1 stop15h 15mAmerican Airlines
Wed 5/1411:05 amLIS - SEA
1 stop18h 45mAmerican Airlines
Deal found 4/1$710
This Icelandair deal was found by Cheapflights users on 4/1. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/611:30 pmSEA - LIS
1 stop13h 50mIcelandair
Thu 9/1810:20 pmLIS - SEA
1 stop27h 30mIcelandair
Deal found 4/1$715
This Finnair deal was found by Cheapflights users on 4/1. 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.
Sun 11/27:46 amSEA - LIS
2 stops23h 39mFinnair
Sun 11/94:10 pmLIS - SEA
2 stops34h 48mFinnair
Deal found 4/1$717
This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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.
Wed 10/11:30 pmSEA - LIS
1 stop18h 10mBritish Airways
Wed 10/86:40 pmLIS - SEA
1 stop24h 55mBritish Airways
Deal found 3/31$724

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 April 2, 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

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 8/18

11:59 pm-9:20 am

2 stops25h 21m

Lisbon Humberto Delgado

Thu 8/28

11:25 am-9:37 pm

2 stops42h 12m

$689

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 8/18

10:20 pm-8:20 am

1 stop26h 00m

Lisbon Humberto Delgado

Thu 8/28

11:25 am-2:45 pm

2 stops35h 20m

$692

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 9/17

6:15 am-11:10 am

2 stops20h 55m

Lisbon Humberto Delgado

Thu 9/25

7:30 am-6:46 pm

2 stops19h 16m

$695

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 8/17

3:25 pm-9:20 am

2 stops33h 55m

Lisbon Humberto Delgado

Fri 8/29

11:25 am-10:56 pm

2 stops19h 31m

$697

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 5/19

3:45 pm-8:30 am

3 stops32h 45m

Lisbon Humberto Delgado

Tue 5/27

9:35 pm-10:13 pm

3 stops32h 38m

$708

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 4/28

1:30 pm-12:45 pm

1 stop15h 15m

Lisbon Humberto Delgado

Wed 5/14

11:05 am-9:50 pm

1 stop18h 45m

$710

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 9/22

7:25 pm-5:55 pm

1 stop14h 30m

Lisbon Humberto Delgado

Wed 10/8

11:00 am-5:35 pm

1 stop14h 35m

$725

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 4/22

1:30 pm-11:00 pm

1 stop25h 30m

Lisbon Humberto Delgado

Tue 4/29

6:45 pm-11:35 am

1 stop24h 50m

$727

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 5/5

7:25 pm-11:10 pm

1 stop19h 45m

Lisbon Humberto Delgado

Mon 5/12

7:15 am-5:35 pm

1 stop18h 20m

$785

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Wed 9/24

7:15 am-10:30 am

2 stops19h 15m

Lisbon Humberto Delgado

Tue 10/7

11:25 am-8:29 pm

2 stops41h 04m

$793

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 55 results
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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 $612). Flying from State of Washington to Lisbon in June is currently the most expensive (average of $1,203). 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 April 2, 2025.

When flying from State of Washington to Lisbon, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Lisbon by month

Plan your trip to Lisbon by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Lisbon ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Lisbon when rainfall is around 0.2 in.

Temperature in Lisbon by month

Plan your trip to Lisbon by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Lisbon, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. 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 Lisbon. Reviews last updated April 2, 2025.
See what other customers who have flown with Delta, KLM and Finnair from Washington to Lisbon have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,898 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,898 reviews
Delta
8.0
Very good
7,898 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very good
7,898 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very good
7,898 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,572 reviews
Delta
8.0
Very good
7,898 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,425 reviews
Delta
8.0
Very good
7,898 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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 Scandinavian Airlines ($461), TAP AIR PORTUGAL ($487), and Icelandair ($506).

  • 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 $612). Flying from State of Washington to Lisbon in June is currently the most expensive (average of $1,203). 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?

Book flights to Washington if you plan to visit one of these locations
Sintra
Almada
Beja
Costa da Caparica
Nazaré
Evora
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Sesimbra
Fátima

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Alternative routes for Washington to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.
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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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$553Average$684FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$606Average$917FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$632Average$929FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$643Average$1,028FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$652Average$821FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$667Average$891FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$705Average$1,209FlexibilityNo cancel feeOn-time77%
DeltaCheapest$705Average$1,199FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$706Average$1,053FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$708Average$1,058FlexibilityNo cancel feeOn-time67%

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