$308+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIS
Jul 4 — Jul 111
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Lisbon with Cheapflights
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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 June 4, 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 June 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 8/163:55 pm
SEA
- LIS
1 stop19h 30m
Scandinavian Airlines
Sat 8/2910:55 pm
LIS
- SEA
1 stop22h 50m
Scandinavian Airlines
Deal found 6/3![Scandinavian Airlines logo]()
$768
This oojo deal was found by Cheapflights users on 6/3. 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 9/193:55 pm
SEA
- LIS
2 stops33h 15m
Multiple Airlines
Sat 10/310:55 pm
LIS
- SEA
1 stop22h 50m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$789
This Scandinavian Airlines deal was found by Cheapflights users on 6/3. 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 8/183:55 pm
SEA
- LIS
1 stop23h 20m
Scandinavian Airlines
Sat 8/2910:55 pm
LIS
- SEA
1 stop22h 50m
Scandinavian Airlines
Deal found 6/3![Scandinavian Airlines logo]()
$826
This KLM deal was found by Cheapflights users on 6/3. 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.
Mon 10/2611:15 am
SEA
- LIS
1 stop13h 45m
Multiple Airlines
Mon 11/26:30 pm
LIS
- SEA
1 stop24h 55m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$832
This Mytrip deal was found by Cheapflights users on 6/3. 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 9/303:40 pm
SEA
- LIS
2 stops18h 10m
Multiple Airlines
Thu 10/87:05 pm
LIS
- SEA
3 stops30h 50m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$849
This Gotogate deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:45 am
SEA
- LIS
1 stop19h 15m
Multiple Airlines
Mon 11/95:00 am
LIS
- SEA
2 stops24h 57m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$860
This Mytrip deal was found by Cheapflights users on 5/29. 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 8/153:40 pm
SEA
- LIS
2 stops23h 00m
Multiple Airlines
Sun 8/236:10 am
LIS
- SEA
3 stops44h 22m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$861
This KAYAK deal was found by Cheapflights users on 5/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:50 pm
SEA
- LIS
1 stop19h 55m
Lufthansa
Mon 12/73:50 pm
LIS
- SEA
2 stops35h 09m
Lufthansa
Deal found 5/29![Lufthansa logo]()
$862
This Orbitz deal was found by Cheapflights users on 5/30. 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.
Sun 12/277:45 am
SEA
- LIS
1 stop19h 15m
Air Canada
Fri 1/81:00 pm
LIS
- SEA
1 stop15h 54m
Air Canada
Deal found 5/30![Air Canada logo]()
$863
This Mytrip deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1310:30 am
SEA
- LIS
3 stops26h 25m
WestJet
Sun 6/216:10 am
LIS
- SEA
3 stops35h 30m
WestJet
Deal found 5/31![WestJet logo]()
$866
This Cheapflightsfares deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/138:20 pm
SEA
- LIS
1 stop18h 40m
British Airways
Wed 10/2811:05 am
LIS
- SEA
1 stop18h 46m
British Airways
Deal found 6/2![British Airways logo]()
$868
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 June 4, 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 June 4, 2026.
This Turkish Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:15 pm
SEA
- LIS
1 stop36h 20m
Turkish Airlines
Wed 9/165:55 am
LIS
- SEA
1 stop19h 25m
Turkish Airlines
Deal found 6/2![Turkish Airlines logo]()
$942
This Delta deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2711:15 am
SEA
- LIS
1 stop15h 30m
Delta
Tue 8/185:00 am
LIS
- SEA
1 stop14h 37m
Delta
Deal found 5/31![Delta logo]()
$975
This United Airlines deal was found by Cheapflights users on 5/30. 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 8/255:00 am
SEA
- LIS
2 stops21h 30m
United Airlines
Fri 9/411:25 am
LIS
- SEA
2 stops32h 07m
United Airlines
Deal found 5/30![United Airlines logo]()
$981
This Delta deal was found by Cheapflights users on 6/3. 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.
Sun 8/161:30 pm
SEA
- LIS
1 stop35h 20m
Delta
Tue 9/111:55 am
LIS
- SEA
1 stop31h 52m
Delta
Deal found 6/3![Delta logo]()
$976
This United Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:15 am
SEA
- LIS
1 stop18h 15m
United Airlines
Fri 8/215:05 am
LIS
- SEA
1 stop14h 50m
United Airlines
Deal found 5/31![United Airlines logo]()
$1,035
This Delta deal was found by Cheapflights users on 6/3. 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.
Sun 8/161:30 pm
SEA
- LIS
1 stop35h 20m
Delta
Wed 8/2611:55 am
LIS
- SEA
1 stop36h 32m
Delta
Deal found 6/3![Delta logo]()
$976
This United Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:50 pm
SEA
- LIS
1 stop19h 55m
United Airlines
Sat 8/226:15 am
LIS
- SEA
1 stop18h 44m
United Airlines
Deal found 5/31![United Airlines logo]()
$1,039
This Delta deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:30 am
SEA
- LIS
2 stops19h 25m
Delta
Wed 8/2611:55 am
LIS
- SEA
1 stop31h 42m
Delta
Deal found 6/2![Delta logo]()
$979
This United Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/298:15 am
SEA
- LIS
1 stop18h 15m
United Airlines
Sun 8/165:05 am
LIS
- SEA
1 stop14h 50m
United Airlines
Deal found 5/31![United Airlines logo]()
$1,047
This Delta deal was found by Cheapflights users on 6/3. 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.
Sun 8/161:30 pm
SEA
- LIS
1 stop35h 20m
Delta
Mon 8/319:50 am
LIS
- SEA
1 stop33h 25m
Delta
Deal found 6/3![Delta logo]()
$996
This United Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/511:20 pm
SEA
- LIS
1 stop27h 10m
United Airlines
Mon 7/205:05 am
LIS
- SEA
2 stops21h 27m
United Airlines
Deal found 6/1![United Airlines logo]()
$1,051
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:18 am
SEA
- LIS
2 stops19h 37m
Delta
Sun 9/65:00 am
LIS
- SEA
2 stops19h 37m
Delta
Deal found 6/1![Delta logo]()
$1,120
Last-minute flights from Seattle to LisbonDiscover last-minute flight deals from Seattle to Lisbon. Data last updated June 4, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Lisbon. Data last updated June 4, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1310:30 am
SEA
- LIS
3 stops26h 25m
WestJet
Sun 6/216:10 am
LIS
- SEA
3 stops35h 30m
WestJet
Deal found 5/31![WestJet logo]()
$866
This Mytrip deal was found by Cheapflights users on 5/29. 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 7/48:20 pm
SEA
- LIS
1 stop13h 45m
Multiple Airlines
Sun 7/196:10 am
LIS
- SEA
2 stops35h 30m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$939
This Mytrip deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/53:40 pm
SEA
- LIS
2 stops21h 15m
Multiple Airlines
Mon 7/206:15 am
LIS
- SEA
3 stops22h 45m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$890
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/810:45 am
SEA
- LIS
2 stops20h 00m
Multiple Airlines
Wed 7/155:05 am
LIS
- SEA
1 stop15h 15m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$946
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/117:10 pm
SEA
- LIS
1 stop18h 45m
Multiple Airlines
Sun 7/196:10 am
LIS
- SEA
2 stops35h 30m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$930
This Mytrip deal was found by Cheapflights users on 5/30. 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.
Sun 7/123:40 pm
SEA
- LIS
2 stops23h 35m
Multiple Airlines
Mon 7/276:15 am
LIS
- SEA
2 stops35h 25m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$885
This Mytrip deal was found by Cheapflights users on 6/3. 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 7/1810:30 am
SEA
- LIS
3 stops26h 25m
WestJet
Sat 7/256:10 am
LIS
- SEA
3 stops35h 30m
WestJet
Deal found 6/3![WestJet logo]()
$919
This Trip.com deal was found by Cheapflights users on 6/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/188:00 am
SEA
- LIS
1 stop19h 05m
Multiple Airlines
Sat 7/256:10 am
LIS
- SEA
2 stops35h 30m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$938
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 June 4, 2026.
Search for one-way flight options from Seattle to Lisbon. Find affordable one-way fares based on user searches. Data last updated June 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/243:40 pm
SEA
- LIS
2 stops33h 55m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:25 pm
SEA
- LIS
2 stops39h 15m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 8/1911:25 pm
SEA
- LIS
2 stops52h 45m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:25 pm
SEA
- LIS
3 stops40h 05m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/283:40 pm
SEA
- LIS
3 stops35h 35m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/27:00 pm
SEA
- LIS
3 stops42h 10m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 5/30. 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 8/1211:25 pm
SEA
- LIS
2 stops50h 45m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:25 pm
SEA
- LIS
2 stops32h 15m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:00 pm
SEA
- LIS
2 stops20h 55m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$369
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 June 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $768 (Kiwi.com) |
One-way from | $308 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $1,221 |
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 June 4, 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
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Tue 8/25
7:15 pm-3:35 pm
1 stop36h 20m
Lisbon Humberto Delgado
Wed 9/16
5:55 am-5:20 pm
1 stop19h 25m
$942
Quickest round-trip
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Mon 7/27
11:15 am-10:45 am
1 stop15h 30m
Lisbon Humberto Delgado
Tue 8/18
5:00 am-11:37 am
1 stop14h 37m
$975
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Sun 8/16
1:30 pm-8:50 am
1 stop35h 20m
Lisbon Humberto Delgado
Tue 9/1
11:55 am-11:47 am
1 stop31h 52m
$976
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Sun 8/16
1:30 pm-8:50 am
1 stop35h 20m
Lisbon Humberto Delgado
Wed 8/26
11:55 am-4:27 pm
1 stop36h 32m
$976
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Tue 8/18
11:30 am-2:55 pm
2 stops19h 25m
Lisbon Humberto Delgado
Wed 8/26
11:55 am-11:37 am
1 stop31h 42m
$979
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Tue 8/25
5:00 am-10:30 am
2 stops21h 30m
Lisbon Humberto Delgado
Fri 9/4
11:25 am-11:32 am
2 stops32h 07m
$981
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Sun 8/16
1:30 pm-8:50 am
1 stop35h 20m
Lisbon Humberto Delgado
Mon 8/31
9:50 am-11:15 am
1 stop33h 25m
$996
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Thu 7/30
8:15 am-10:30 am
1 stop18h 15m
Lisbon Humberto Delgado
Fri 8/21
5:05 am-11:55 am
1 stop14h 50m
$1,035
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Wed 7/29
6:50 pm-10:45 pm
1 stop19h 55m
Lisbon Humberto Delgado
Sat 8/22
6:15 am-4:59 pm
1 stop18h 44m
$1,039
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Wed 7/29
8:15 am-10:30 am
1 stop18h 15m
Lisbon Humberto Delgado
Sun 8/16
5:05 am-11:55 am
1 stop14h 50m
$1,047
Showing 1-10 of 22 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 June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 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?
To ensure you get the cheapest price possible for a flight from Seattle to Lisbon, you should look to book at least 80 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 June 4, 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
7.8
Boarding
8.1
Overall
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Overall
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Overall
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Overall
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Overall
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Overall
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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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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 June 4, 2026.
Seattle and Lisbon flights
Browse other Seattle and Lisbon flight options. Last updated on June 4, 2026.
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Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on June 4, 2026.
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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 June 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$348 | Average$439 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$482 | Average$698 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$482 | Average$759 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$494 | Average$877 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$503 | Average$989 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$505 | Average$841 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$543 | Average$1,035 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$545 | Average$972 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$553 | Average$886 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$558 | Average$1,042 | FlexibilityNo cancel fee | On-time71% |