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$333+ Cheap flights from Lisbon (LIS) to Seattle (SEA)

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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SEA
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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Cheap flight deals from Lisbon to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Lisbon (LIS) to Seattle (SEA). 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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$711
(Mytrip)

One-way from

$333
(Kiwi.com)

Popular in

July

Cheapest in

May

Average price

$1,054
Provider with most accurate pricing for Lisbon Humberto Delgado-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Seattle/Tacoma Intl flights.
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From Lisbon Humberto Delgado to Seattle/Tacoma Intl
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One-way flight from Lisbon Humberto Delgado to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 14% potential increase in price ($157 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Lisbon to Seattle

Cheapest flights from Lisbon to Seattle
Explore the most affordable flight options available from Lisbon to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

This Mytrip deal was found by Cheapflights users on 1/6. 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.
Sat 4/256:10 amLIS - SEA
2 stops22h 30mMultiple Airlines
Sun 5/33:40 pmSEA - LIS
2 stops20h 20mMultiple Airlines
Deal found 1/6$711
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/510:40 amLIS - SEA
2 stops35h 39mMultiple Airlines
Mon 5/46:55 pmSEA - LIS
1 stop18h 40mMultiple Airlines
Deal found 1/6$747
This American Airlines deal was found by Cheapflights users on 1/6. 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.
Sat 1/178:20 amLIS - SEA
2 stops36h 54mAmerican Airlines
Mon 2/28:04 amSEA - LIS
2 stops26h 51mAmerican Airlines
Deal found 1/6$751
This Iberia deal was found by Cheapflights users on 1/6. 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.
Sat 1/176:30 amLIS - SEA
2 stops23h 20mMultiple Airlines
Mon 2/26:50 pmSEA - LIS
1 stop19h 05mMultiple Airlines
Deal found 1/6$753
This Iberia deal was found by Cheapflights users on 1/7. 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.
Sun 1/187:45 amLIS - SEA
2 stops22h 35mMultiple Airlines
Tue 2/31:25 pmSEA - LIS
1 stop24h 20mMultiple Airlines
Deal found 1/7$754
This British Airways deal was found by Cheapflights users on 1/6. 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.
Sat 1/1710:40 amLIS - SEA
1 stop19h 27mBritish Airways
Mon 2/26:50 pmSEA - LIS
1 stop16h 05mBritish Airways
Deal found 1/6$755
This British Airways deal was found by Cheapflights users on 1/6. 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 2/2011:05 amLIS - SEA
1 stop18h 52mBritish Airways
Fri 2/271:35 pmSEA - LIS
1 stop17h 15mBritish Airways
Deal found 1/6$756
This Cheapflightsfares deal was found by Cheapflights users on 1/8. 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.
Tue 3/37:05 amLIS - SEA
1 stop17h 50mBritish Airways
Thu 3/267:50 pmSEA - LIS
1 stop19h 05mBritish Airways
Deal found 1/8$757
This Finnair deal was found by Cheapflights users on 1/8. 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.
Wed 4/86:35 amLIS - SEA
2 stops23h 51mMultiple Airlines
Wed 4/221:35 pmSEA - LIS
1 stop18h 05mMultiple Airlines
Deal found 1/8$758
This British Airways deal was found by Cheapflights users on 1/6. 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 4/37:20 amLIS - SEA
1 stop19h 05mBritish Airways
Sun 5/31:35 pmSEA - LIS
1 stop25h 30mBritish Airways
Deal found 1/6$759
This American Airlines deal was found by Cheapflights users on 1/5. 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.
Wed 1/2111:05 amLIS - SEA
2 stops32h 40mAmerican Airlines
Sun 1/2510:50 amSEA - LIS
2 stops26h 55mAmerican Airlines
Deal found 1/5$760

Cheapflights Fare Finder

 
Customize your flight search to find flights from Lisbon to Seattle 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 January 8, 2026.
Use the filters below to find and compare flights from Lisbon to Seattle that are best for you.

Fly from

Lisbon

Fly to

Seattle

Route

Depart

Return

Price

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 4/5

10:40 am-2:19 pm

2 stops35h 39m

Seattle/Tacoma Intl

Mon 5/4

6:55 pm-9:35 pm

1 stop18h 40m

$747

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 1/18

7:45 am-10:20 pm

2 stops22h 35m

Seattle/Tacoma Intl

Tue 2/3

1:25 pm-9:45 pm

1 stop24h 20m

$754

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 2/20

11:05 am-9:57 pm

1 stop18h 52m

Seattle/Tacoma Intl

Sat 2/28

7:15 am-12:10 pm

2 stops20h 55m

$755

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 3/1

11:05 am-9:57 pm

1 stop18h 52m

Seattle/Tacoma Intl

Wed 3/25

7:50 pm-5:40 pm

1 stop14h 50m

$755

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Wed 4/8

11:05 am-9:23 pm

1 stop18h 18m

Seattle/Tacoma Intl

Wed 4/22

1:35 pm-2:10 pm

1 stop16h 35m

$755

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Wed 4/8

6:35 am-10:26 pm

2 stops23h 51m

Seattle/Tacoma Intl

Wed 4/22

1:35 pm-11:15 pm

1 stop25h 40m

$757

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Wed 1/21

11:05 am-10:07 pm

1 stop19h 02m

Seattle/Tacoma Intl

Sun 1/25

11:55 am-9:45 pm

2 stops25h 50m

$759

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 4/3

7:20 am-6:25 pm

1 stop19h 05m

Seattle/Tacoma Intl

Sun 5/3

1:35 pm-11:05 pm

1 stop25h 30m

$759

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 4/19

9:15 pm-10:29 am

2 stops45h 14m

$333

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sat 5/2

6:35 am-11:29 pm

2 stops24h 54m

$380

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 18 results
1
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Compare providers for flights from Lisbon to Seattle

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 Seattle in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Lisbon-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Lisbon-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Lisbon-Seattle 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-Seattle 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 Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle 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 Seattle

What is the cheapest month to book a flight from Lisbon to Seattle?

Currently, April is the cheapest month in which you can book a flight from Lisbon to Seattle (average of $692). Flying from Lisbon to Seattle in July is currently the most expensive (average of $970). 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.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated January 8, 2026.
Read through reviews of airlines operating flights from Lisbon to Seattle, such as Delta, Air France, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,029 reviews

Entertainment

7.8

Boarding

8.1

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,029 reviews
Delta
7.9
Good
8,029 reviews

Entertainment

7.8

Boarding

8.1

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air France
7.4
Good
1,519 reviews
Delta
7.9
Good
8,029 reviews

Entertainment

7.8

Boarding

8.1

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,139 reviews
Delta
7.9
Good
8,029 reviews

Entertainment

7.8

Boarding

8.1

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,657 reviews
Delta
7.9
Good
8,029 reviews

Entertainment

7.8

Boarding

8.1

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Lisbon to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Lisbon to Seattle?

    A quick flight from Lisbon to Seattle can take about 18h 52m. British Airways provides one of the quickest options available for as low as $755. There are 5199 mi between Lisbon and Seattle.

  • What are the cheapest airlines flying from Lisbon to Seattle round-trip?

    Flying on British Airways is currently your cheapest option to Seattle, with prices starting at $720. Additional round-trip tickets that might be worth considering are offered by United Airlines and Air France, with the lowest prices starting at $738 and $762, respectively. British Airways is priced at 24% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Lisbon to Seattle one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $561. Aer Lingus flights start at $562 while deals on Turkish Airlines start at $583 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Lisbon to Seattle 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 Seattle?

    Currently, April is the cheapest month in which you can book a flight from Lisbon to Seattle (average of $692). Flying from Lisbon to Seattle in July is currently the most expensive (average of $970). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Edmonds
Renton
Puyallup
Kirkland
Kent
Tukwila
Marysville
Fife
Aberdeen
Shoreline
Centralia
Federal Way
Chehalis
Tumwater

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Lisbon to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Lisbon to Portland flights
Porto to Seattle flights

Top 4 airlines flying from Lisbon to Seattle

Discover the top 4 airlines that operate flights from Lisbon to Seattle. 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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$720Average$1,016FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$738Average$1,236FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$762Average$1,159FlexibilityNo cancel feeOn-time77%
DeltaCheapest$775Average$1,077FlexibilityNo cancel feeOn-timeN/A

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