$301+ Cheap flights from Seattle (SEA) 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIS
May 21 — May 281
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Lisbon with Cheapflights
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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
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Cheapest flights from Seattle to LisbonExplore the most affordable flight options available from Seattle to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 21, 2026.
Explore the most affordable flight options available from Seattle to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 21, 2026.
This oojo deal was found by Cheapflights users on 4/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/253:40 pm
SEA
- LIS
1 stop21h 40m
Icelandair
Thu 4/303:25 pm
LIS
- SEA
1 stop13h 15m
Icelandair
Deal found 4/17![Icelandair logo]()
$663
This oojo deal was found by Cheapflights users on 4/21. 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.
Tue 9/83:55 pm
SEA
- LIS
1 stop15h 40m
Scandinavian Airlines
Sat 9/194:25 pm
LIS
- SEA
1 stop29h 20m
Scandinavian Airlines
Deal found 4/21![Scandinavian Airlines logo]()
$677
This Gotogate deal was found by Cheapflights users on 4/19. 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.
Sun 11/153:10 pm
SEA
- LIS
1 stop24h 20m
Multiple Airlines
Tue 12/156:10 am
LIS
- SEA
2 stops20h 16m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$685
This Gotogate deal was found by Cheapflights users on 4/19. 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.
Sat 11/78:10 am
SEA
- LIS
1 stop18h 50m
Multiple Airlines
Sat 11/145:00 am
LIS
- SEA
1 stop15h 10m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$687
This Gotogate deal was found by Cheapflights users on 4/19. 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 11/268:10 am
SEA
- LIS
1 stop18h 50m
Multiple Airlines
Sun 12/65:00 am
LIS
- SEA
2 stops21h 26m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$691
This FlightHub deal was found by Cheapflights users on 4/16. 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.
Mon 10/57:10 pm
SEA
- LIS
1 stop36h 30m
Turkish Airlines
Fri 10/1611:00 am
LIS
- SEA
1 stop38h 15m
Turkish Airlines
Deal found 4/16![Turkish Airlines logo]()
$693
This FlightHub deal was found by Cheapflights users on 4/16. 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.
Tue 8/257:10 pm
SEA
- LIS
1 stop36h 25m
Turkish Airlines
Fri 9/411:00 am
LIS
- SEA
1 stop31h 40m
Turkish Airlines
Deal found 4/16![Turkish Airlines logo]()
$696
This Justfly.com deal was found by Cheapflights users on 4/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/273:05 pm
SEA
- LIS
2 stops35h 55m
Lufthansa
Sun 12/65:00 am
LIS
- SEA
1 stop15h 10m
Lufthansa
Deal found 4/19![Lufthansa logo]()
$702
Best flights from Seattle to LisbonDiscover carefully curated flight deals from Seattle to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 21, 2026.
Discover carefully curated flight deals from Seattle to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 21, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 4/17. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/253:55 pm
SEA
- LIS
1 stop15h 40m
Scandinavian Airlines
Wed 9/167:15 am
LIS
- SEA
2 stops19h 50m
Scandinavian Airlines
Deal found 4/17![Scandinavian Airlines logo]()
$793
This Delta deal was found by Cheapflights users on 4/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:15 am
SEA
- LIS
2 stops20h 00m
Delta
Wed 5/135:00 am
LIS
- SEA
1 stop19h 30m
Delta
Deal found 4/18![Delta logo]()
$796
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Tue 7/2110:40 pm
SEA
- LIS
2 stops26h 40m
United Airlines
Tue 8/2511:25 am
LIS
- SEA
2 stops35h 02m
United Airlines
Deal found 4/16![United Airlines logo]()
$870
This Turkish Airlines deal was found by Cheapflights users on 4/20. 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.
Sat 9/127:10 pm
SEA
- LIS
1 stop36h 25m
Turkish Airlines
Sat 9/265:55 am
LIS
- SEA
1 stop19h 20m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$874
This KLM deal was found by Cheapflights users on 4/20. 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 5/85:40 pm
SEA
- LIS
1 stop21h 10m
KLM
Sun 5/177:45 pm
LIS
- SEA
1 stop28h 45m
KLM
Deal found 4/20![KLM logo]()
$952
This Finnair deal was found by Cheapflights users on 4/20. 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 10/111:30 pm
SEA
- LIS
1 stop25h 35m
Multiple Airlines
Sat 10/176:35 am
LIS
- SEA
2 stops25h 39m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$987
This Virgin Atlantic deal was found by Cheapflights users on 4/17. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:25 am
SEA
- LIS
2 stops18h 35m
Virgin Atlantic
Tue 7/2112:45 pm
LIS
- SEA
2 stops19h 13m
Virgin Atlantic
Deal found 4/17![Virgin Atlantic logo]()
$1,053
This Delta deal was found by Cheapflights users on 4/17. 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.
Mon 7/206:35 pm
SEA
- LIS
1 stop15h 15m
Delta
Tue 8/255:00 am
LIS
- SEA
2 stops22h 05m
Delta
Deal found 4/17![Delta logo]()
$877
This Delta deal was found by Cheapflights users on 4/16. 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.
Tue 7/286:35 pm
SEA
- LIS
1 stop15h 15m
Delta
Thu 8/69:50 am
LIS
- SEA
2 stops21h 16m
Delta
Deal found 4/16![Delta logo]()
$1,008
This Delta deal was found by Cheapflights users on 4/20. 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 9/97:20 am
SEA
- LIS
2 stops19h 55m
Delta
Tue 9/155:00 am
LIS
- SEA
2 stops19h 55m
Delta
Deal found 4/20![Delta logo]()
$1,043
This Delta deal was found by Cheapflights users on 4/17. 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.
Mon 7/137:15 am
SEA
- LIS
1 stop16h 45m
Delta
Tue 7/215:35 am
LIS
- SEA
2 stops21h 36m
Delta
Deal found 4/17![Delta logo]()
$1,045
Last-minute flights from Seattle to LisbonDiscover last-minute flight deals from Seattle to Lisbon. Data last updated April 21, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Lisbon. Data last updated April 21, 2026 and is based on user searches.
This Air France deal was found by Cheapflights users on 4/18. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:15 am
SEA
- LIS
1 stop19h 30m
Multiple Airlines
Mon 5/47:45 pm
LIS
- SEA
1 stop23h 57m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$712
This Delta deal was found by Cheapflights users on 4/17. 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.
Mon 4/206:40 pm
SEA
- LIS
1 stop15h 10m
Delta
Mon 5/411:55 am
LIS
- SEA
1 stop31h 47m
Delta
Deal found 4/17![Delta logo]()
$717
This Expedia deal was found by Cheapflights users on 4/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:15 am
SEA
- LIS
2 stops17h 35m
Air France
Mon 5/46:50 pm
LIS
- SEA
1 stop24h 25m
Air France
Deal found 4/17![Air France logo]()
$724
This Delta deal was found by Cheapflights users on 4/20. 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.
Mon 4/2010:35 pm
SEA
- LIS
1 stop28h 10m
Delta
Fri 5/85:00 am
LIS
- SEA
1 stop14h 42m
Delta
Deal found 4/20![Delta logo]()
$727
This Delta deal was found by Cheapflights users on 4/20. 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 4/217:20 am
SEA
- LIS
1 stop16h 40m
Delta
Wed 4/295:00 am
LIS
- SEA
1 stop14h 40m
Delta
Deal found 4/20![Delta logo]()
$716
This Air France deal was found by Cheapflights users on 4/16. 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.
Tue 4/211:30 pm
SEA
- LIS
1 stop24h 55m
Multiple Airlines
Wed 4/297:45 pm
LIS
- SEA
1 stop23h 55m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$718
This Delta deal was found by Cheapflights users on 4/20. 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 4/216:00 am
SEA
- LIS
2 stops18h 50m
Delta
Tue 4/285:00 am
LIS
- SEA
1 stop19h 30m
Delta
Deal found 4/20![Delta logo]()
$721
This Delta deal was found by Cheapflights users on 4/16. 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 4/227:20 am
SEA
- LIS
1 stop16h 40m
Delta
Thu 4/309:50 am
LIS
- SEA
1 stop15h 48m
Delta
Deal found 4/16![Delta logo]()
$723
This oojo deal was found by Cheapflights users on 4/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/253:40 pm
SEA
- LIS
1 stop21h 40m
Icelandair
Thu 4/303:25 pm
LIS
- SEA
1 stop13h 15m
Icelandair
Deal found 4/17![Icelandair logo]()
$663
This Delta deal was found by Cheapflights users on 4/21. 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.
Mon 4/271:45 pm
SEA
- LIS
2 stops20h 05m
Delta
Tue 5/55:00 am
LIS
- SEA
1 stop19h 30m
Delta
Deal found 4/21![Delta logo]()
$720
One-way flights from Seattle to LisbonSearch for one-way flight options from Seattle to Lisbon. Find affordable one-way fares based on user searches. Data last updated April 21, 2026.
Search for one-way flight options from Seattle to Lisbon. Find affordable one-way fares based on user searches. Data last updated April 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/263:40 pm
SEA
- LIS
3 stops45h 30m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 5/37:00 pm
SEA
- LIS
3 stops36h 10m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/273:40 pm
SEA
- LIS
3 stops44h 15m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:00 pm
SEA
- LIS
3 stops43h 10m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$342
This Kiwi.com deal was found by Cheapflights users on 4/17. 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.
Mon 5/117:00 pm
SEA
- LIS
3 stops39h 15m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/53:40 pm
SEA
- LIS
3 stops33h 55m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$348
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:00 pm
SEA
- LIS
3 stops39h 10m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:40 pm
SEA
- LIS
3 stops46h 10m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:00 pm
SEA
- LIS
3 stops31h 15m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 5/297:00 pm
SEA
- LIS
3 stops30h 35m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 4/17. 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.
Thu 10/159:55 pm
SEA
- LIS
3 stops54h 40m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$365
Find flight deals from Seattle to Lisbon
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Lisbon (LIS). 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 April 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $677 (oojo) |
One-way from | $301 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $708 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle 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 21, 2026.
Use the filters below to find and compare flights from Seattle to Lisbon that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Tue 8/25
3:55 pm-3:35 pm
1 stop15h 40m
Lisbon Humberto Delgado
Wed 9/16
7:15 am-7:05 pm
2 stops19h 50m
$793
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Wed 5/6
7:15 am-11:15 am
2 stops20h 00m
Lisbon Humberto Delgado
Wed 5/13
5:00 am-4:30 pm
1 stop19h 30m
$796
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Tue 7/21
10:40 pm-9:20 am
2 stops26h 40m
Lisbon Humberto Delgado
Tue 8/25
11:25 am-2:27 pm
2 stops35h 02m
$870
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Sat 9/12
7:10 pm-3:35 pm
1 stop36h 25m
Lisbon Humberto Delgado
Sat 9/26
5:55 am-5:15 pm
1 stop19h 20m
$874
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Mon 7/20
6:35 pm-5:50 pm
1 stop15h 15m
Lisbon Humberto Delgado
Tue 8/25
5:00 am-7:05 pm
2 stops22h 05m
$877
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Fri 5/8
5:40 pm-10:50 pm
1 stop21h 10m
Lisbon Humberto Delgado
Sun 5/17
7:45 pm-4:30 pm
1 stop28h 45m
$952
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Sun 10/11
1:30 pm-11:05 pm
1 stop25h 35m
Lisbon Humberto Delgado
Sat 10/17
6:35 am-12:14 am
2 stops25h 39m
$987
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Tue 7/28
6:35 pm-5:50 pm
1 stop15h 15m
Lisbon Humberto Delgado
Thu 8/6
9:50 am-11:06 pm
2 stops21h 16m
$1,008
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Wed 9/9
7:20 am-11:15 am
2 stops19h 55m
Lisbon Humberto Delgado
Tue 9/15
5:00 am-4:55 pm
2 stops19h 55m
$1,043
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Mon 7/13
7:15 am-8:00 am
1 stop16h 45m
Lisbon Humberto Delgado
Tue 7/21
5:35 am-7:11 pm
2 stops21h 36m
$1,045
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Seattle to Lisbon
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 Seattle to Lisbon in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Seattle-Lisbon flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Lisbon flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Lisbon flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Lisbon 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 Seattle-Lisbon 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 Seattle to Lisbon
Have a flexible travel schedule? Discover the best time to fly to Lisbon from Seattle with our price prediction graph.
SEA-LIS
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 Seattle to Lisbon
How far ahead should I book a flight from Seattle to Lisbon?
Use this chart to determine the optimal time to book a round-trip flight from Seattle to Lisbon. Price data was last updated on April 17, 2026.
To ensure you get the cheapest price possible for a flight from Seattle to Lisbon, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Seattle to Lisbon?
Currently, January is the cheapest month in which you can book a flight from Seattle to Lisbon (average of $492). Flying from Seattle to Lisbon in June is currently the most expensive (average of $1,221). 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 Seattle to Lisbon?
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 21, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andIcelandair from Seattle to Lisbon by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.9
Overall
7.9
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Seattle to Lisbon. 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 Lisbon?
Book flights to Lisbon if you plan to visit one of these locationsFátima
Ericeira
Oeiras
Beja
Costa da Caparica
Torres Vedras
Nazaré
Colares
Sesimbra
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Alternative routes for Seattle to Lisbon
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Complete your trip
Complete your trip to Lisbon by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Lisbon by cabin class
Find flights from Seattle to Lisbon, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Lisbon
Explore flights to Lisbon departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 21, 2026.
Seattle and Lisbon flights
Browse other Seattle and Lisbon flight options. Last updated on April 21, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on April 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 10 airlines flying from Seattle to Lisbon
Discover the top 10 airlines that operate flights from Seattle 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 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$348 | Average$467 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$482 | Average$755 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$484 | Average$724 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$493 | Average$947 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$494 | Average$881 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$530 | Average$866 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$543 | Average$1,050 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$545 | Average$952 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$553 | Average$911 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$558 | Average$1,042 | FlexibilityNo cancel fee | On-time71% |