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$400+ 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SEA
ene. 22 — ene. 291
mié. 1/22
mié. 1/29
1 adult, Economy
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The best prices from Lisbon Humberto Delgado to Seattle/Tacoma Intl are usually found in December or April, booked 68 days in advance, depart on a Wednesday or Thursday and return on a Monday

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 enero 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$694
(Finnair)

One-way from

$400
(Kiwi.com)

Popular in

August

Cheapest in

December

Average price

$1,000
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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High demand for flights, 9% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in January 2025
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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 enero 17, 2025.

This FlightHub deal was found by Cheapflights users on 1/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/57:00 amLIS - SEA
1 stop14h 50mMultiple Airlines
vie. 9/194:20 pmSEA - LIS
1 stop32h 45mMultiple Airlines
Deal found 1/16$633
This Finnair deal was found by Cheapflights users on 1/15. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/1410:45 amLIS - SEA
1 stop14h 10mFinnair
vie. 2/216:50 pmSEA - LIS
1 stop19h 35mFinnair
Deal found 1/15$694
This British Airways deal was found by Cheapflights users on 1/16. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/311:05 amLIS - SEA
1 stop19h 04mBritish Airways
lun. 3/247:50 pmSEA - LIS
1 stop16h 05mBritish Airways
Deal found 1/16$701
This Orbitz deal was found by Cheapflights users on 1/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/148:20 amLIS - SEA
2 stops24h 36mIberia
vie. 2/211:45 pmSEA - LIS
2 stops20h 20mIberia
Deal found 1/15$712
This American Airlines deal was found by Cheapflights users on 1/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/1111:10 amLIS - SEA
1 stop17h 55mAmerican Airlines
mié. 4/28:20 pmSEA - LIS
1 stop18h 50mAmerican Airlines
Deal found 1/16$719
This Delta deal was found by Cheapflights users on 1/16. 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.
lun. 3/175:00 amLIS - SEA
1 stop14h 40mDelta
mié. 4/21:40 pmSEA - LIS
2 stops20h 15mDelta
Deal found 1/16$775
This Air Canada deal was found by Cheapflights users on 1/16. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/105:00 amLIS - SEA
2 stops21h 27mAir Canada
lun. 2/176:05 amSEA - LIS
2 stops43h 15mAir Canada
Deal found 1/16$776
This United Airlines deal was found by Cheapflights users on 1/16. 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.
mié. 10/295:00 amLIS - SEA
1 stop15h 10mUnited Airlines
sáb. 11/87:03 amSEA - LIS
3 stops19h 12mUnited Airlines
Deal found 1/16$784
This Lufthansa deal was found by Cheapflights users on 1/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/46:15 amLIS - SEA
1 stop18h 44mLufthansa
dom. 4/206:50 pmSEA - LIS
1 stop19h 00mLufthansa
Deal found 1/16$787
This KLM deal was found by Cheapflights users on 1/16. 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.
sáb. 4/55:00 amLIS - SEA
1 stop14h 45mKLM
dom. 4/205:35 pmSEA - LIS
1 stop17h 05mKLM
Deal found 1/16$793
This oojo deal was found by Cheapflights users on 1/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/195:55 amLIS - SEA
1 stop19h 15mTurkish Airlines
jue. 7/1712:30 pmSEA - LIS
1 stop27h 05mTurkish Airlines
Deal found 1/16$808
This SWISS deal was found by Cheapflights users on 1/16. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/68:40 amLIS - SEA
2 stops46h 13mSWISS
dom. 4/2010:50 amSEA - LIS
2 stops49h 10mSWISS
Deal found 1/16$870

Find flights from Lisbon to Seattle within your budget

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 enero 17, 2025.

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Route

Depart

Return

Price

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

vie. 2/14

10:45 am-4:55 pm

1 stop14h 10m

Seattle/Tacoma Intl

vie. 2/21

6:50 pm-10:25 pm

1 stop19h 35m

$694

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

vie. 2/14

8:20 am-12:56 am

2 stops24h 36m

Seattle/Tacoma Intl

vie. 2/21

6:50 pm-10:25 pm

1 stop19h 35m

$700

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

lun. 3/3

11:05 am-10:09 pm

1 stop19h 04m

Seattle/Tacoma Intl

lun. 3/24

7:50 pm-6:55 pm

1 stop16h 05m

$701

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

vie. 2/14

8:20 am-12:56 am

2 stops24h 36m

Seattle/Tacoma Intl

vie. 2/21

1:45 pm-6:05 pm

2 stops20h 20m

$712

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

mar. 3/11

11:10 am-10:05 pm

1 stop17h 55m

Seattle/Tacoma Intl

mié. 4/2

8:20 pm-11:10 pm

1 stop18h 50m

$719

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

lun. 3/17

5:00 am-12:40 pm

1 stop14h 40m

Seattle/Tacoma Intl

mié. 4/2

1:40 pm-5:55 pm

2 stops20h 15m

$775

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

lun. 2/10

5:00 am-6:27 pm

2 stops21h 27m

Seattle/Tacoma Intl

lun. 2/17

6:05 am-9:20 am

2 stops43h 15m

$776

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

vie. 4/4

6:15 am-4:59 pm

1 stop18h 44m

Seattle/Tacoma Intl

dom. 4/20

6:50 pm-9:50 pm

1 stop19h 00m

$787

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

sáb. 4/5

5:00 am-11:45 am

1 stop14h 45m

Seattle/Tacoma Intl

dom. 4/20

5:35 pm-6:40 pm

1 stop17h 05m

$793

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

lun. 2/10

10:15 am-11:20 am

3 stops33h 05m

Seattle/Tacoma Intl

lun. 2/17

7:05 am-8:10 am

2 stops17h 05m

$800

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 20 results
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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 Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Lisbon-Seattle flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Travel insights for flights from Lisbon to Seattle

Get recent, data-driven insights about flights from Lisbon to Seattle including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Lisbon to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Lisbon to Seattle. Price data was last updated on January 10, 2025.

The price you pay for your flight from Lisbon to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Lisbon to Seattle (average of $238). Flying from Lisbon to Seattle in July is currently the most expensive (average of $411). 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 SEA?

Find hourly flight availability from Lisbon to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 17, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 18% on flights from Lisbon to Seattle by exploring options for tickets in the afternoon.

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 enero 17, 2025.
Delta
8.0
Very good
8,511 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,511 reviews
Delta
8.0
Very good
8,511 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,339 reviews
Delta
8.0
Very good
8,511 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very good
8,511 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS
7.5
Good
1,598 reviews
Delta
8.0
Very good
8,511 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,965 reviews
Delta
8.0
Very good
8,511 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    Flying on Finnair is currently your cheapest option to Seattle, with prices starting at $694. Additional round-trip tickets that might be worth considering are offered by British Airways and Iberia, with the lowest prices starting at $701 and $712, respectively. Finnair is priced at 27% 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 Turkish Airlines, which is currently one of the cheapest options available, starting at $582. Aer Lingus flights start at $596 while deals on Finnair start at $638 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, January is the cheapest month in which you can book a flight from Lisbon to Seattle (average of $238). Flying from Lisbon to Seattle in July is currently the most expensive (average of $411). 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
SeaTac
Tukwila
Renton
Tacoma
Lacey
Federal Way
Ocean Shores
Leavenworth
Olympia
Marysville
Centralia
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

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 7 airlines flying from Lisbon to Seattle

Discover the top 7 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 enero 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$668Average$718FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$715Average$875FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$745Average$885FlexibilityNo cancel feeOn-time70%
DeltaCheapest$756Average$859FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$774Average$855FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$795Average$974FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$801Average$873FlexibilityNo cancel feeOn-time71%
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