$310+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIS
Jun 27 — Jul 41
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 May 28, 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 May 28, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 5/26. 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.
Mon 12/147:20 am
SEA
- LIS
2 stops24h 45m
Scandinavian Airlines
Fri 12/257:05 am
LIS
- SEA
2 stops23h 06m
Scandinavian Airlines
Deal found 5/26![Scandinavian Airlines logo]()
$847
This Mytrip deal was found by Cheapflights users on 5/25. 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 8/195:40 pm
SEA
- LIS
3 stops29h 10m
Multiple Airlines
Thu 8/2710:10 pm
LIS
- SEA
2 stops25h 50m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$860
This KAYAK deal was found by Cheapflights users on 5/25. 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.
Fri 10/23:55 pm
SEA
- LIS
1 stop22h 10m
Scandinavian Airlines
Sat 10/1010:55 pm
LIS
- SEA
1 stop22h 50m
Scandinavian Airlines
Deal found 5/25![Scandinavian Airlines logo]()
$861
This Trip.com deal was found by Cheapflights users on 5/27. 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.
Mon 8/248:10 am
SEA
- LIS
1 stop18h 20m
Multiple Airlines
Mon 8/316:15 am
LIS
- SEA
2 stops35h 25m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$862
This Mytrip deal was found by Cheapflights users on 5/27. 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 8/168:00 am
SEA
- LIS
3 stops27h 25m
Multiple Airlines
Sat 8/222:00 pm
LIS
- SEA
3 stops34h 59m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$863
This Mytrip deal was found by Cheapflights users on 5/25. 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 8/293:40 pm
SEA
- LIS
2 stops23h 50m
Multiple Airlines
Sun 9/136:10 am
LIS
- SEA
2 stops35h 30m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$864
This Mytrip deal was found by Cheapflights users on 5/24. 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 6/68:00 am
SEA
- LIS
2 stops28h 55m
Multiple Airlines
Fri 6/1210:00 pm
LIS
- SEA
3 stops43h 40m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$866
This Cheapflightsfares deal was found by Cheapflights users on 5/28. 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 10/131:30 pm
SEA
- LIS
1 stop25h 30m
British Airways
Wed 10/2811:05 am
LIS
- SEA
1 stop18h 46m
British Airways
Deal found 5/28![British Airways logo]()
$868
This Justfly.com deal was found by Cheapflights users on 5/27. 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.
Tue 10/135:40 am
SEA
- LIS
2 stops19h 40m
Multiple Airlines
Wed 10/285:00 am
LIS
- SEA
1 stop15h 00m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$870
This Justfly.com deal was found by Cheapflights users on 5/25. 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.
Mon 10/2610:10 am
SEA
- LIS
2 stops17h 50m
Lufthansa
Mon 11/25:00 am
LIS
- SEA
1 stop15h 00m
Lufthansa
Deal found 5/25![Lufthansa logo]()
$871
This Delta deal was found by Cheapflights users on 5/26. 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 10/2111:50 am
SEA
- LIS
1 stop14h 55m
Delta
Wed 10/2811:30 am
LIS
- SEA
1 stop32h 17m
Delta
Deal found 5/26![Delta logo]()
$872
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 May 28, 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 May 28, 2026.
This Delta deal was found by Cheapflights users on 5/25. 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 10/41:30 pm
SEA
- LIS
1 stop20h 20m
Delta
Thu 10/225:00 am
LIS
- SEA
1 stop14h 52m
Delta
Deal found 5/25![Delta logo]()
$919
This United Airlines deal was found by Cheapflights users on 5/27. 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.
Mon 9/288:10 am
SEA
- LIS
1 stop18h 20m
United Airlines
Thu 10/85:05 am
LIS
- SEA
1 stop15h 15m
United Airlines
Deal found 5/27![United Airlines logo]()
$919
This Delta deal was found by Cheapflights users on 5/26. 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 10/221:45 pm
SEA
- LIS
1 stop16h 50m
Delta
Tue 10/2711:30 am
LIS
- SEA
1 stop32h 17m
Delta
Deal found 5/26![Delta logo]()
$926
This United Airlines deal was found by Cheapflights users on 5/24. 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 7/127:54 pm
SEA
- LIS
2 stops31h 06m
United Airlines
Wed 7/225:05 am
LIS
- SEA
2 stops21h 27m
United Airlines
Deal found 5/24![United Airlines logo]()
$985
This United Airlines deal was found by Cheapflights users on 5/27. 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.
Sat 9/1910:58 pm
SEA
- LIS
1 stop25h 22m
United Airlines
Sat 10/35:05 am
LIS
- SEA
1 stop15h 15m
United Airlines
Deal found 5/27![United Airlines logo]()
$992
This Delta deal was found by Cheapflights users on 5/23. 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 9/236:05 am
SEA
- LIS
2 stops21h 10m
Delta
Sat 10/105:00 am
LIS
- SEA
2 stops19h 59m
Delta
Deal found 5/23![Delta logo]()
$994
This United Airlines deal was found by Cheapflights users on 5/25. 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.
Mon 7/67:54 pm
SEA
- LIS
2 stops30h 36m
United Airlines
Mon 7/207:25 am
LIS
- SEA
1 stop36h 30m
United Airlines
Deal found 5/25![United Airlines logo]()
$998
This United Airlines deal was found by Cheapflights users on 5/28. 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 9/98:10 am
SEA
- LIS
1 stop18h 20m
United Airlines
Sun 9/205:05 am
LIS
- SEA
1 stop14h 50m
United Airlines
Deal found 5/28![United Airlines logo]()
$1,007
This United Airlines deal was found by Cheapflights users on 5/24. 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.
Sat 7/1811:00 pm
SEA
- LIS
2 stops26h 20m
United Airlines
Sat 8/15:05 am
LIS
- SEA
2 stops21h 27m
United Airlines
Deal found 5/24![United Airlines logo]()
$1,050
Last-minute flights from Seattle to LisbonDiscover last-minute flight deals from Seattle to Lisbon. Data last updated May 28, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Lisbon. Data last updated May 28, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 5/24. 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 6/27:00 pm
SEA
- LIS
2 stops19h 50m
Multiple Airlines
Sat 6/136:10 am
LIS
- SEA
3 stops35h 30m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$948
This Mytrip deal was found by Cheapflights users on 5/24. 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 6/31:30 pm
SEA
- LIS
3 stops24h 45m
Multiple Airlines
Wed 6/108:15 am
LIS
- SEA
3 stops33h 25m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$947
This Mytrip deal was found by Cheapflights users on 5/24. 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 6/68:00 am
SEA
- LIS
2 stops28h 55m
Multiple Airlines
Fri 6/1210:00 pm
LIS
- SEA
3 stops43h 40m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$866
This Mytrip deal was found by Cheapflights users on 5/26. 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
Multiple Airlines
Mon 6/226:15 am
LIS
- SEA
3 stops35h 52m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$901
This Mytrip deal was found by Cheapflights users on 5/26. 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 6/185:45 am
SEA
- LIS
2 stops32h 50m
Multiple Airlines
Tue 6/236:15 am
LIS
- SEA
2 stops35h 25m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$898
This Mytrip deal was found by Cheapflights users on 5/23. 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 6/207:35 pm
SEA
- LIS
2 stops17h 20m
Multiple Airlines
Sat 6/276:10 am
LIS
- SEA
3 stops35h 30m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$920
This Mytrip deal was found by Cheapflights users on 5/23. 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 6/207:35 pm
SEA
- LIS
2 stops17h 20m
WestJet
Tue 6/306:15 am
LIS
- SEA
3 stops46h 42m
WestJet
Deal found 5/23![WestJet logo]()
$957
This Mytrip deal was found by Cheapflights users on 5/24. 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 6/215:45 am
SEA
- LIS
3 stops32h 00m
Multiple Airlines
Sun 6/286:10 am
LIS
- SEA
3 stops44h 22m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$909
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 6/227:10 pm
SEA
- LIS
1 stop15h 45m
Multiple Airlines
Mon 6/296:15 am
LIS
- SEA
2 stops35h 25m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$953
This Kiwi.com deal was found by Cheapflights users on 5/26. 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 6/309:45 pm
SEA
- LIS
1 stop16h 45m
Multiple Airlines
Thu 7/166:10 am
LIS
- SEA
2 stops22h 50m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$904
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 May 28, 2026.
Search for one-way flight options from Seattle to Lisbon. Find affordable one-way fares based on user searches. Data last updated May 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/23. 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 11/102:35 pm
SEA
- LIS
3 stops25h 10m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 5/23. 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 10/163:40 pm
SEA
- LIS
3 stops23h 45m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 8/153:40 pm
SEA
- LIS
3 stops47h 45m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 5/27. 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 9/23:40 pm
SEA
- LIS
3 stops20h 55m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 5/23. 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 8/313:40 pm
SEA
- LIS
3 stops36h 20m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 5/24. 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 8/511:25 pm
SEA
- LIS
2 stops50h 45m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 5/26. 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 10/37:00 pm
SEA
- LIS
3 stops42h 05m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$342
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 9/163:40 pm
SEA
- LIS
3 stops47h 50m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 5/24. 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 11/72:35 pm
SEA
- LIS
3 stops21h 45m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 9/147:00 pm
SEA
- LIS
3 stops30h 35m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$348
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 May 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $860 (Mytrip) |
One-way from | $310 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $1,101 |
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 May 28, 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
Sun 10/4
1:30 pm-5:50 pm
1 stop20h 20m
Lisbon Humberto Delgado
Thu 10/22
5:00 am-11:52 am
1 stop14h 52m
$919
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Mon 9/28
8:10 am-10:30 am
1 stop18h 20m
Lisbon Humberto Delgado
Thu 10/8
5:05 am-12:20 pm
1 stop15h 15m
$919
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Thu 10/22
1:45 pm-2:35 pm
1 stop16h 50m
Lisbon Humberto Delgado
Tue 10/27
11:30 am-12:47 pm
1 stop32h 17m
$926
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Sun 7/12
7:54 pm-11:00 am
2 stops31h 06m
Lisbon Humberto Delgado
Wed 7/22
5:05 am-6:32 pm
2 stops21h 27m
$985
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Sat 9/19
10:58 pm-8:20 am
1 stop25h 22m
Lisbon Humberto Delgado
Sat 10/3
5:05 am-12:20 pm
1 stop15h 15m
$992
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Wed 9/23
6:05 am-11:15 am
2 stops21h 10m
Lisbon Humberto Delgado
Sat 10/10
5:00 am-4:59 pm
2 stops19h 59m
$994
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Mon 7/6
7:54 pm-10:30 am
2 stops30h 36m
Lisbon Humberto Delgado
Mon 7/20
7:25 am-11:55 am
1 stop36h 30m
$998
Quickest round-trip
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Wed 9/9
8:10 am-10:30 am
1 stop18h 20m
Lisbon Humberto Delgado
Sun 9/20
5:05 am-11:55 am
1 stop14h 50m
$1,007
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Sat 7/18
11:00 pm-9:20 am
2 stops26h 20m
Lisbon Humberto Delgado
Sat 8/1
5:05 am-6:32 pm
2 stops21h 27m
$1,050
Cheapest one-way
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Sat 11/7
2:35 pm-8:20 pm
3 stops21h 45m
$347
Showing 1-10 of 21 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 May.
| 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 May 28, 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.
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.9
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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Complete your trip
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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 May 28, 2026.
Seattle and Lisbon flights
Browse other Seattle and Lisbon flight options. Last updated on May 28, 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 May 28, 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 May 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$348 | Average$440 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$482 | Average$709 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$482 | Average$761 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$494 | Average$875 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$503 | Average$980 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$505 | Average$839 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$543 | Average$1,054 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$545 | Average$967 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$553 | Average$911 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$558 | Average$980 | FlexibilityNo cancel fee | On-time71% |