$229+ 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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIS
Jul 10 — Jul 171
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Seattle to Lisbon with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Lisbon
Cheapest
Best
Last-minute
One-way
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 10, 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 10, 2026.
This FlightHub deal was found by Cheapflights users on 6/6. 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.
Sun 8/163:55 pm
SEA
- LIS
1 stop19h 30m
Scandinavian Airlines
Fri 8/218:55 pm
LIS
- SEA
1 stop24h 50m
Scandinavian Airlines
Deal found 6/6![Scandinavian Airlines logo]()
$653
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 6/8![Scandinavian Airlines logo]()
$656
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 8/143:55 pm
SEA
- LIS
1 stop22h 10m
Scandinavian Airlines
Sat 8/2910:55 pm
LIS
- SEA
1 stop22h 50m
Scandinavian Airlines
Deal found 6/9![Scandinavian Airlines logo]()
$659
This Scandinavian Airlines deal was found by Cheapflights users on 6/6. 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.
Fri 8/143:55 pm
SEA
- LIS
1 stop22h 10m
Scandinavian Airlines
Mon 8/178:15 pm
LIS
- SEA
1 stop25h 30m
Scandinavian Airlines
Deal found 6/6![Scandinavian Airlines logo]()
$676
This Justfly.com deal was found by Cheapflights users on 6/9. 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 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 6/9![Scandinavian Airlines logo]()
$683
This Scandinavian Airlines deal was found by Cheapflights users on 6/8. 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.
Fri 8/283:55 pm
SEA
- LIS
1 stop22h 10m
Scandinavian Airlines
Wed 9/912:05 am
LIS
- SEA
2 stops30h 00m
Scandinavian Airlines
Deal found 6/8![Scandinavian Airlines logo]()
$722
This oojo deal was found by Cheapflights users on 6/8. 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 6/8![Multiple Airlines logo]()
$727
This Mytrip deal was found by Cheapflights users on 6/9. 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 8/267:00 pm
SEA
- LIS
3 stops20h 50m
Multiple Airlines
Fri 9/410:00 pm
LIS
- SEA
3 stops43h 40m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$741
This Orbitz deal was found by Cheapflights users on 6/8. 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.
Sat 9/53:55 pm
SEA
- LIS
2 stops22h 05m
Multiple Airlines
Sat 9/1210:55 pm
LIS
- SEA
1 stop22h 50m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$742
This Mytrip deal was found by Cheapflights users on 6/10. 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 9/27:00 pm
SEA
- LIS
2 stops17h 10m
Multiple Airlines
Sat 9/126:10 am
LIS
- SEA
2 stops22h 54m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$758
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 10, 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 10, 2026.
This United Airlines deal was found by Cheapflights users on 6/6. 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 10/312:00 pm
SEA
- LIS
1 stop35h 10m
United Airlines
Sat 11/145:00 am
LIS
- SEA
1 stop15h 00m
United Airlines
Deal found 6/6![United Airlines logo]()
$886
This Delta deal was found by Cheapflights users on 6/9. 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 10/81:30 pm
SEA
- LIS
1 stop13h 45m
Delta
Wed 11/411:30 am
LIS
- SEA
1 stop32h 17m
Delta
Deal found 6/9![Delta logo]()
$931
This Turkish Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 7/17:15 pm
SEA
- LIS
1 stop30h 35m
Turkish Airlines
Wed 7/1510:55 am
LIS
- SEA
1 stop38h 25m
Turkish Airlines
Deal found 6/10![Turkish Airlines logo]()
$1,312
This Delta deal was found by Cheapflights users on 6/9. 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 10/81:30 pm
SEA
- LIS
1 stop20h 20m
Delta
Thu 11/55:00 am
LIS
- SEA
1 stop14h 47m
Delta
Deal found 6/9![Delta logo]()
$931
This United Airlines deal was found by Cheapflights users on 6/8. 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 9/1211:04 pm
SEA
- LIS
1 stop27h 26m
United Airlines
Tue 10/205:05 am
LIS
- SEA
1 stop15h 15m
United Airlines
Deal found 6/8![United Airlines logo]()
$958
This Delta deal was found by Cheapflights users on 6/8. 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 9/146:45 pm
SEA
- LIS
1 stop15h 05m
Delta
Mon 10/1911:55 am
LIS
- SEA
1 stop31h 57m
Delta
Deal found 6/8![Delta logo]()
$946
This United Airlines deal was found by Cheapflights users on 6/9. 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 10/86:50 pm
SEA
- LIS
1 stop19h 55m
United Airlines
Fri 10/3011:20 am
LIS
- SEA
2 stops31h 20m
United Airlines
Deal found 6/9![United Airlines logo]()
$982
This Delta deal was found by Cheapflights users on 6/8. 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 7/131:30 pm
SEA
- LIS
1 stop17h 25m
Delta
Thu 7/235:00 am
LIS
- SEA
1 stop19h 20m
Delta
Deal found 6/8![Delta logo]()
$974
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Fri 10/212:59 pm
SEA
- LIS
1 stop35h 21m
United Airlines
Tue 10/65:05 am
LIS
- SEA
1 stop15h 15m
United Airlines
Deal found 6/6![United Airlines logo]()
$984
This United Airlines deal was found by Cheapflights users on 6/8. 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 9/1911:04 pm
SEA
- LIS
1 stop27h 26m
United Airlines
Sat 10/35:05 am
LIS
- SEA
1 stop15h 15m
United Airlines
Deal found 6/8![United Airlines logo]()
$1,020
This United Airlines deal was found by Cheapflights users on 6/9. 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 7/910:52 am
SEA
- LIS
2 stops15h 38m
United Airlines
Thu 7/165:05 am
LIS
- SEA
2 stops17h 17m
United Airlines
Deal found 6/9![United Airlines logo]()
$1,036
Last-minute flights from Seattle to LisbonDiscover last-minute flight deals from Seattle to Lisbon. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Lisbon. Data last updated June 10, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 6/6. 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 7/27:35 pm
SEA
- LIS
2 stops19h 00m
WestJet
Tue 7/76:15 am
LIS
- SEA
2 stops22h 45m
WestJet
Deal found 6/6![WestJet logo]()
$813
This Mytrip deal was found by Cheapflights users on 6/7. 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
3 stops32h 50m
Multiple Airlines
Mon 7/206:15 am
LIS
- SEA
2 stops35h 25m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$896
This Mytrip deal was found by Cheapflights users on 6/6. 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 stops23h 25m
Multiple Airlines
Tue 7/216:15 am
LIS
- SEA
3 stops35h 25m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$911
This Mytrip deal was found by Cheapflights users on 6/8. 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 7/73:40 pm
SEA
- LIS
2 stops20h 55m
Multiple Airlines
Tue 7/149:30 am
LIS
- SEA
2 stops34h 15m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$906
This Mytrip deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/133:40 pm
SEA
- LIS
3 stops32h 50m
Multiple Airlines
Mon 7/206:15 am
LIS
- SEA
2 stops35h 25m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$904
This Mytrip deal was found by Cheapflights users on 6/6. 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 7/267:00 pm
SEA
- LIS
3 stops30h 50m
Multiple Airlines
Sun 8/236:10 am
LIS
- SEA
2 stops35h 30m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$852
This Mytrip deal was found by Cheapflights users on 6/7. 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 7/293:40 pm
SEA
- LIS
3 stops24h 00m
Multiple Airlines
Sat 8/156:10 am
LIS
- SEA
3 stops44h 35m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$905
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 10, 2026.
Search for one-way flight options from Seattle to Lisbon. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 11/257:55 am
SEA
- LIS
3 stops20h 30m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 11/167:48 am
SEA
- LIS
3 stops24h 42m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 11/17:48 am
SEA
- LIS
3 stops29h 32m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 7/277:00 pm
SEA
- LIS
3 stops39h 15m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 9/167:52 am
SEA
- LIS
3 stops28h 38m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 7/213:40 pm
SEA
- LIS
3 stops38h 55m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 7/287:00 pm
SEA
- LIS
3 stops44h 40m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 9/73:40 pm
SEA
- LIS
3 stops21h 30m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:00 pm
SEA
- LIS
3 stops38h 55m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:25 pm
SEA
- LIS
3 stops40h 25m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:25 pm
SEA
- LIS
3 stops35h 40m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$343
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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $653 (FlightHub) |
One-way from | $229 (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 10, 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
Sat 10/31
2:00 pm-8:10 am
1 stop35h 10m
Lisbon Humberto Delgado
Sat 11/14
5:00 am-12:00 pm
1 stop15h 00m
$886
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Thu 10/8
1:30 pm-11:15 am
1 stop13h 45m
Lisbon Humberto Delgado
Wed 11/4
11:30 am-11:47 am
1 stop32h 17m
$931
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Thu 10/8
1:30 pm-5:50 pm
1 stop20h 20m
Lisbon Humberto Delgado
Thu 11/5
5:00 am-11:47 am
1 stop14h 47m
$931
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Mon 9/14
6:45 pm-5:50 pm
1 stop15h 05m
Lisbon Humberto Delgado
Mon 10/19
11:55 am-11:52 am
1 stop31h 57m
$946
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Sat 9/12
11:04 pm-10:30 am
1 stop27h 26m
Lisbon Humberto Delgado
Tue 10/20
5:05 am-12:20 pm
1 stop15h 15m
$958
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Mon 7/13
1:30 pm-2:55 pm
1 stop17h 25m
Lisbon Humberto Delgado
Thu 7/23
5:00 am-4:20 pm
1 stop19h 20m
$974
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Thu 10/8
6:50 pm-10:45 pm
1 stop19h 55m
Lisbon Humberto Delgado
Fri 10/30
11:20 am-11:40 am
2 stops31h 20m
$982
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Fri 10/2
12:59 pm-8:20 am
1 stop35h 21m
Lisbon Humberto Delgado
Tue 10/6
5:05 am-12:20 pm
1 stop15h 15m
$984
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Sat 9/19
11:04 pm-10:30 am
1 stop27h 26m
Lisbon Humberto Delgado
Sat 10/3
5:05 am-12:20 pm
1 stop15h 15m
$1,020
Quickest round-trip
SeattleLisbon
SEA - LIS
SEALIS
Seattle/Tacoma Intl
Thu 7/9
10:52 am-10:30 am
2 stops15h 38m
Lisbon Humberto Delgado
Thu 7/16
5:05 am-2:22 pm
2 stops17h 17m
$1,036
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 $488). 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 10, 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.
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.8
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
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Lisbon flight routes
Other flight options
Other flights from Seattle
Popular flights
Alternative routes for Seattle to Lisbon
See prices for flight routes from nearby airports that may be better suited for you.
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 June 10, 2026.
Seattle and Lisbon flights
Browse other Seattle and Lisbon flight options. Last updated on June 10, 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 June 10, 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 June 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$348 | Average$437 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$482 | Average$686 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$482 | Average$760 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$488 | Average$875 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$497 | Average$1,042 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$503 | Average$980 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$504 | Average$839 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$543 | Average$1,035 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$545 | Average$980 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$553 | Average$886 | FlexibilityNo cancel fee | On-timeN/A |