$347+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SEA
Sep 18 — Sep 251
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Lisbon to Seattle 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 Lisbon to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Lisbon to SeattleExplore 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 August 19, 2026.
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 August 19, 2026.
This Mytrip deal was found by Cheapflights users on 8/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:10 am -
2 stops22h 30m
Tue 10/67:00 pm -
3 stops34h 35m
Deal found 8/15![Multiple Airlines logo]()
$845
This Mytrip deal was found by Cheapflights users on 8/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:05 pm -
2 stops33h 50m
Wed 9/307:00 pm -
2 stops20h 40m
Deal found 8/16![Multiple Airlines logo]()
$866
This Mytrip deal was found by Cheapflights users on 8/18. 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.
Thu 10/85:55 am -
2 stops22h 45m
Fri 10/233:40 pm -
3 stops33h 50m
Deal found 8/18![Multiple Airlines logo]()
$872
This Gotogate deal was found by Cheapflights users on 8/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/83:00 pm -
1 stop13h 40m
Fri 10/237:00 pm -
1 stop34h 50m
Deal found 8/16![Icelandair logo]()
$910
This Turkish Airlines deal was found by Cheapflights users on 8/17. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:55 am -
2 stops49h 01m
Fri 10/2310:42 am -
2 stops53h 43m
Deal found 8/17![Turkish Airlines logo]()
$922
Best flights from Lisbon to SeattleDiscover carefully curated flight deals from Lisbon to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.
Discover carefully curated flight deals from Lisbon to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.
This Turkish Airlines deal was found by Cheapflights users on 8/17. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:55 am -
2 stops49h 01m
Fri 10/2310:42 am -
2 stops53h 43m
Deal found 8/17![Turkish Airlines logo]()
$922
This Mytrip deal was found by Cheapflights users on 8/17. 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.
Mon 9/148:15 am -
2 stops33h 25m
Sun 9/2710:30 am -
3 stops27h 15m
Deal found 8/17![Multiple Airlines logo]()
$961
This Delta deal was found by Cheapflights users on 8/14. 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 9/225:00 am -
1 stop14h 47m
Fri 10/26:40 pm -
1 stop15h 10m
Deal found 8/14![Delta logo]()
$970
This Turkish Airlines deal was found by Cheapflights users on 8/16. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:00 am -
2 stops40h 32m
Tue 11/1010:50 am -
2 stops39h 45m
Deal found 8/16![Turkish Airlines logo]()
$931
This KLM deal was found by Cheapflights users on 8/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:20 am -
1 stop15h 15m
Fri 10/21:30 pm -
1 stop20h 20m
Deal found 8/17![Multiple Airlines logo]()
$970
This Delta deal was found by Cheapflights users on 8/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:00 am -
1 stop14h 47m
Fri 10/211:22 am -
2 stops19h 33m
Deal found 8/15![Delta logo]()
$973
This KLM deal was found by Cheapflights users on 8/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:00 am -
1 stop14h 47m
Sun 9/206:45 pm -
1 stop19h 40m
Deal found 8/17![Multiple Airlines logo]()
$970
This Delta deal was found by Cheapflights users on 8/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:00 am -
1 stop19h 35m
Tue 10/66:40 pm -
1 stop15h 10m
Deal found 8/15![Delta logo]()
$973
Last-minute flights from Lisbon to SeattleDiscover last-minute flight deals from Lisbon to Seattle. Data last updated August 19, 2026 and is based on user searches.
Discover last-minute flight deals from Lisbon to Seattle. Data last updated August 19, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 8/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:25 pm -
3 stops32h 20m
Mon 9/217:35 pm -
2 stops26h 55m
Deal found 8/16![Multiple Airlines logo]()
$951
This Mytrip deal was found by Cheapflights users on 8/17. 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.
Mon 9/148:15 am -
2 stops33h 25m
Sun 9/2710:30 am -
3 stops27h 15m
Deal found 8/17![Multiple Airlines logo]()
$961
This Delta deal was found by Cheapflights users on 8/14. 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 9/225:00 am -
1 stop19h 35m
Fri 10/27:15 am -
2 stops20h 00m
Deal found 8/14![Delta logo]()
$970
This Mytrip deal was found by Cheapflights users on 8/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:05 pm -
2 stops33h 50m
Wed 9/307:00 pm -
2 stops20h 40m
Deal found 8/16![Multiple Airlines logo]()
$866
This Mytrip deal was found by Cheapflights users on 8/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:10 am -
2 stops22h 30m
Tue 10/67:00 pm -
3 stops34h 35m
Deal found 8/15![Multiple Airlines logo]()
$845
This Mytrip deal was found by Cheapflights users on 8/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3011:55 am -
3 stops32h 25m
Wed 10/76:50 pm -
2 stops18h 45m
Deal found 8/16![Multiple Airlines logo]()
$954
This Gotogate deal was found by Cheapflights users on 8/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:45 am -
1 stop37h 35m
Wed 10/76:50 pm -
1 stop19h 55m
Deal found 8/16![Lufthansa logo]()
$964
One-way flights from Lisbon to SeattleSearch for one-way flight options from Lisbon to Seattle. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.
Search for one-way flight options from Lisbon to Seattle. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:10 am -
3 stops44h 35m
Deal found 8/15![WestJet logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:15 am -
3 stops44h 30m
Deal found 8/17![WestJet logo]()
$369
This Mytrip deal was found by Cheapflights users on 8/14. 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 9/226:15 am -
2 stops35h 25m
Deal found 8/14![WestJet logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:10 am -
2 stops35h 30m
Deal found 8/15![WestJet logo]()
$407
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Sat 9/126:10 am -
3 stops59h 32m
Deal found 8/14![Multiple Airlines logo]()
$424
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:50 pm -
3 stops34h 10m
Deal found 8/17![Multiple Airlines logo]()
$436
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:05 pm -
3 stops45h 35m
Deal found 8/17![Multiple Airlines logo]()
$442
Find 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 August 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $845 (Mytrip) |
One-way from | $347 (Kiwi.com) |
Popular in | July |
Cheapest in | December |
Average price | $1,043 |
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 August 19, 2026.
Use the filters below to find and compare flights from Lisbon to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LisbonSeattle
LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl
LISSEA
Lisbon Humberto Delgado
Thu 10/8
5:55 am-10:56 pm
2 stops49h 01m
Seattle/Tacoma Intl
Fri 10/23
10:42 am-12:25 am
2 stops53h 43m
$922
LisbonSeattle
LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl
LISSEA
Lisbon Humberto Delgado
Tue 10/27
6:00 am-3:32 pm
2 stops40h 32m
Seattle/Tacoma Intl
Tue 11/10
10:50 am-10:35 am
2 stops39h 45m
$931
LisbonSeattle
LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl
LISSEA
Lisbon Humberto Delgado
Mon 9/14
8:15 am-9:40 am
2 stops33h 25m
Seattle/Tacoma Intl
Sun 9/27
10:30 am-9:45 pm
3 stops27h 15m
$961
Quickest round-trip
LisbonSeattle
LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl
LISSEA
Lisbon Humberto Delgado
Tue 9/22
5:00 am-11:47 am
1 stop14h 47m
Seattle/Tacoma Intl
Fri 10/2
6:40 pm-5:50 pm
1 stop15h 10m
$970
LisbonSeattle
LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl
LISSEA
Lisbon Humberto Delgado
Tue 9/22
9:20 am-4:35 pm
1 stop15h 15m
Seattle/Tacoma Intl
Fri 10/2
1:30 pm-5:50 pm
1 stop20h 20m
$970
LisbonSeattle
LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl
LISSEA
Lisbon Humberto Delgado
Sat 9/19
5:00 am-11:47 am
1 stop14h 47m
Seattle/Tacoma Intl
Sun 9/20
6:45 pm-10:25 pm
1 stop19h 40m
$970
LisbonSeattle
LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl
LISSEA
Lisbon Humberto Delgado
Sat 9/19
5:00 am-11:47 am
1 stop14h 47m
Seattle/Tacoma Intl
Fri 10/2
11:22 am-2:55 pm
2 stops19h 33m
$973
LisbonSeattle
LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl
LISSEA
Lisbon Humberto Delgado
Tue 9/29
5:00 am-4:35 pm
1 stop19h 35m
Seattle/Tacoma Intl
Tue 10/6
6:40 pm-5:50 pm
1 stop15h 10m
$973
Cheapest one-way
LisbonSeattle
LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl
LISSEA
Lisbon Humberto Delgado
Thu 9/10
6:10 am-9:40 am
2 stops35h 30m
$402
LisbonSeattle
LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl
LISSEA
Lisbon Humberto Delgado
Sat 9/12
6:10 am-9:42 am
3 stops59h 32m
$424
Showing 1-10 of 17 resultsSorted by cheapest first
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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
LIS-SEA
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
Prices
Delays
What is the cheapest month to book a flight from Lisbon to Seattle?
Currently, December is the cheapest month in which you can book a flight from Lisbon to Seattle (average of $880). Flying from Lisbon to Seattle in July is currently the most expensive (average of $1,382). 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.
How much does it cost to fly round-trip from Lisbon to Seattle?
Airfare is below average for this route at the moment.
Lisbon to Seattle flights typically cost between $906 and $1,289 in September.The cheapest round-trip price found within the last 5 days was $845 on Multiple Airlines (Sep 29-Oct 6).
How often are flights from Lisbon to Seattle delayed?
About 50% of weekly flights between Lisbon and Seattle have experienced delays in the past year, with the average delay time being 108 minutes.
What is the most punctual flight time for Lisbon to Seattle flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
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 August 19, 2026.
Read through reviews of airlines operating flights from Lisbon to Seattle, such as Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Comfort
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
8.0
ExcellentRakshith,May 2026
TPE - SEA
Entertainment
7.8
Comfort
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
8.0
ExcellentRakshith,May 2026
TPE - SEA
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.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Tukwila
Olympia
Edmonds
Snoqualmie
Lynnwood
Tumwater
Centralia
Puyallup
Kent
Marysville
Ellensburg
Ocean Shores
Lakewood
Fife
Poulsbo
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
Complete your trip
Flights by cabin class
Other flight options
Other flights from Lisbon
Popular flights
Seattle flight routes
Alternative routes for Lisbon to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Lisbon to Seattle by cabin class
Find flights from Lisbon to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Lisbon and Seattle flights
Browse other Lisbon and Seattle flight options. Last updated on August 19, 2026.
Other flights from Lisbon
Browse through other flights departing from Lisbon. Flights are based on user searches made on Cheapflights and were last updated on August 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 19, 2026.
Top airline flying from Lisbon to Seattle
Discover the top airline 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 August 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,041 | Average$1,195 | FlexibilityNo cancel fee | On-timeN/A |