$240+ Cheap flights from Seattle (SEA) to Thailand
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
Mar 24 — Mar 311
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Seattle to Thailand 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 Thailand
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to ThailandExplore the most affordable flight options available from Seattle to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2026.
Explore the most affordable flight options available from Seattle to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2026.
This FlightHub deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1810:15 am
SEA
- HKT
1 stop19h 00m
Singapore Airlines
Thu 4/2311:40 am
HKT
- SEA
1 stop35h 05m
Singapore Airlines
Deal found 2/19![Singapore Airlines logo]()
$498
This oojo deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1210:15 am
SEA
- HKT
1 stop40h 55m
Singapore Airlines
Mon 4/278:10 pm
HKT
- SEA
1 stop26h 35m
Singapore Airlines
Deal found 2/20![Singapore Airlines logo]()
$525
This oojo deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:15 am
SEA
- HKT
1 stop40h 55m
Singapore Airlines
Fri 4/249:25 am
HKT
- SEA
1 stop37h 20m
Singapore Airlines
Deal found 2/21![Singapore Airlines logo]()
$526
This FlightHub deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:15 am
SEA
- HKT
1 stop32h 20m
Singapore Airlines
Fri 4/249:25 am
HKT
- SEA
1 stop37h 20m
Singapore Airlines
Deal found 2/21![Singapore Airlines logo]()
$544
This Justfly.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2610:15 am
SEA
- HKT
1 stop32h 20m
Singapore Airlines
Sat 5/28:10 pm
HKT
- SEA
1 stop26h 35m
Singapore Airlines
Deal found 2/20![Singapore Airlines logo]()
$547
This oojo deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/210:15 am
SEA
- HKT
1 stop37h 55m
Singapore Airlines
Mon 5/1111:40 am
HKT
- SEA
1 stop35h 05m
Singapore Airlines
Deal found 2/20![Singapore Airlines logo]()
$549
This FlightHub deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:15 am
SEA
- HKT
1 stop40h 55m
Singapore Airlines
Fri 10/3010:05 am
HKT
- SEA
1 stop36h 05m
Singapore Airlines
Deal found 2/19![Singapore Airlines logo]()
$606
This Justfly.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:15 am
SEA
- BKK
1 stop19h 45m
Singapore Airlines
Wed 9/210:30 pm
BKK
- SEA
1 stop24h 15m
Singapore Airlines
Deal found 2/20![Singapore Airlines logo]()
$636
This Gurufare deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:10 pm
SEA
- BKK
1 stop33h 30m
Philippine Airlines
Wed 9/161:25 pm
BKK
- SEA
1 stop20h 40m
Philippine Airlines
Deal found 2/18![Philippine Airlines logo]()
$640
This oojo deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:06 pm
SEA
- BKK
2 stops27h 14m
Singapore Airlines
Mon 5/41:35 pm
BKK
- SEA
1 stop33h 10m
Singapore Airlines
Deal found 2/20![Singapore Airlines logo]()
$641
This CrystalTravel deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/112:10 am
SEA
- BKK
1 stop30h 50m
Asiana Airlines
Sat 3/1412:20 pm
BKK
- SEA
1 stop16h 35m
Asiana Airlines
Deal found 2/19![Asiana Airlines logo]()
$642
This Gurufare deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:15 am
SEA
- BKK
1 stop36h 05m
Multiple Airlines
Sun 5/103:30 pm
BKK
- SEA
2 stops31h 59m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$643
Best flights from Seattle to ThailandDiscover carefully curated flight deals from Seattle to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 22, 2026.
Discover carefully curated flight deals from Seattle to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 22, 2026.
This FlightHub deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1810:15 am
SEA
- HKT
1 stop37h 55m
Singapore Airlines
Thu 4/2311:40 am
HKT
- SEA
1 stop35h 05m
Singapore Airlines
Deal found 2/18![Singapore Airlines logo]()
$498
This Korean Air deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:50 pm
SEA
- BKK
1 stop18h 55m
Korean Air
Mon 5/1811:30 pm
BKK
- SEA
1 stop25h 10m
Korean Air
Deal found 2/19![Korean Air logo]()
$701
This Ovago deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:45 am
SEA
- HKT
1 stop33h 05m
Cathay Pacific
Tue 4/2811:50 am
HKT
- SEA
1 stop36h 15m
Cathay Pacific
Deal found 2/18![Cathay Pacific logo]()
$706
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/35:00 am
SEA
- BKK
3 stops38h 35m
United Airlines
Tue 5/199:35 am
BKK
- SEA
1 stop18h 50m
United Airlines
Deal found 2/19![United Airlines logo]()
$717
This Gurufare deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:55 am
SEA
- HKT
1 stop30h 00m
Asiana Airlines
Sun 5/310:15 pm
HKT
- SEA
1 stop30h 40m
Asiana Airlines
Deal found 2/18![Asiana Airlines logo]()
$741
This China Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/71:10 am
SEA
- BKK
1 stop21h 00m
China Airlines
Mon 5/181:20 pm
BKK
- SEA
1 stop19h 55m
China Airlines
Deal found 2/19![China Airlines logo]()
$789
This BusinessClass deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:30 pm
SEA
- CNX
1 stop20h 05m
EVA Air
Tue 4/711:35 am
CNX
- SEA
1 stop21h 55m
EVA Air
Deal found 2/18![EVA Air logo]()
$845
This Gurufare deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/162:53 pm
SEA
- CNX
2 stops35h 27m
Multiple Airlines
Sat 4/255:20 pm
CNX
- SEA
1 stop36h 50m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$867
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:30 am
SEA
- CNX
1 stop20h 25m
Delta
Tue 3/1712:15 am
CNX
- SEA
1 stop28h 05m
Delta
Deal found 2/20![Delta logo]()
$893
This Emirates deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/85:05 pm
SEA
- KBV
1 stop36h 40m
Emirates
Wed 3/1112:00 pm
KBV
- SEA
1 stop39h 35m
Emirates
Deal found 2/19![Emirates logo]()
$1,368
This Korean Air deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/312:50 pm
SEA
- BKK
1 stop20h 45m
Korean Air
Thu 5/219:40 pm
BKK
- SEA
1 stop27h 00m
Korean Air
Deal found 2/19![Korean Air logo]()
$701
This oojo deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:15 am
SEA
- HKT
1 stop34h 35m
Singapore Airlines
Sat 4/252:15 pm
HKT
- SEA
1 stop32h 30m
Singapore Airlines
Deal found 2/18![Singapore Airlines logo]()
$721
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:08 am
SEA
- BKK
2 stops36h 27m
United Airlines
Fri 5/83:45 pm
BKK
- SEA
3 stops40h 47m
United Airlines
Deal found 2/19![United Airlines logo]()
$741
This Korean Air deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/711:00 am
SEA
- BKK
1 stop22h 55m
Korean Air
Thu 3/1212:55 am
BKK
- SEA
1 stop23h 05m
Korean Air
Deal found 2/19![Korean Air logo]()
$701
This China Airlines deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/161:15 am
SEA
- BKK
1 stop18h 30m
China Airlines
Tue 4/2810:50 am
BKK
- SEA
1 stop22h 25m
China Airlines
Deal found 2/18![China Airlines logo]()
$789
This oojo deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1810:15 am
SEA
- HKT
1 stop32h 30m
Singapore Airlines
Sun 4/268:10 pm
HKT
- SEA
2 stops34h 00m
Singapore Airlines
Deal found 2/18![Singapore Airlines logo]()
$760
This United Airlines deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/264:32 pm
SEA
- BKK
2 stops27h 03m
United Airlines
Thu 4/303:45 pm
BKK
- SEA
2 stops40h 47m
United Airlines
Deal found 2/18![United Airlines logo]()
$761
This Korean Air deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:35 am
SEA
- BKK
2 stops26h 00m
Korean Air
Mon 5/119:40 pm
BKK
- SEA
2 stops31h 11m
Korean Air
Deal found 2/18![Korean Air logo]()
$718
This Gurufare deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/191:50 am
SEA
- CNX
1 stop18h 35m
EVA Air
Wed 5/2711:35 am
CNX
- SEA
1 stop21h 55m
EVA Air
Deal found 2/18![EVA Air logo]()
$901
This Mytrip deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/271:15 am
SEA
- DMK
2 stops26h 20m
Multiple Airlines
Mon 5/117:30 am
DMK
- SEA
2 stops25h 45m
Multiple Airlines
Deal found 2/20![Multiple Airlines logo]()
$926
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/74:30 pm
SEA
- BKK
1 stop22h 05m
United Airlines
Thu 5/219:35 am
BKK
- SEA
2 stops29h 54m
United Airlines
Deal found 2/19![United Airlines logo]()
$788
This Korean Air deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/87:20 am
SEA
- BKK
2 stops27h 45m
Korean Air
Sun 8/232:35 am
BKK
- SEA
2 stops26h 49m
Korean Air
Deal found 2/19![Korean Air logo]()
$718
This KAYAK deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:10 am
SEA
- CNX
1 stop19h 25m
EVA Air
Wed 4/811:35 am
CNX
- SEA
1 stop21h 55m
EVA Air
Deal found 2/18![EVA Air logo]()
$922
This Gurufare deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/87:41 pm
SEA
- CNX
2 stops30h 14m
Multiple Airlines
Sun 3/1510:10 am
CNX
- SEA
2 stops19h 55m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$937
This United Airlines deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:42 am
SEA
- BKK
2 stops34h 53m
United Airlines
Wed 4/299:35 am
BKK
- SEA
1 stop18h 50m
United Airlines
Deal found 2/18![United Airlines logo]()
$790
This KAYAK deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/112:10 am
SEA
- CNX
1 stop19h 25m
EVA Air
Thu 4/911:55 am
CNX
- SEA
2 stops21h 35m
EVA Air
Deal found 2/18![EVA Air logo]()
$941
This Korean Air deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/257:10 am
SEA
- HKT
2 stops48h 00m
Korean Air
Thu 3/511:40 pm
HKT
- SEA
1 stop24h 20m
Korean Air
Deal found 2/19![Korean Air logo]()
$807
This Mytrip deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2610:15 am
SEA
- DMK
1 stop22h 45m
Multiple Airlines
Thu 4/308:10 am
DMK
- SEA
2 stops25h 20m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$982
This KAYAK deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:30 pm
SEA
- CNX
1 stop20h 05m
EVA Air
Wed 4/811:55 am
CNX
- SEA
2 stops21h 35m
EVA Air
Deal found 2/18![EVA Air logo]()
$941
This oojo deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/411:10 pm
SEA
- USM
2 stops54h 30m
Cathay Pacific
Sun 4/1911:55 am
USM
- SEA
1 stop36h 10m
Cathay Pacific
Deal found 2/20![Cathay Pacific logo]()
$1,267
Last-minute flights from Seattle to ThailandDiscover last-minute flight deals from Seattle to Thailand. Data last updated February 22, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Thailand. Data last updated February 22, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2212:10 am
SEA
- BKK
1 stop20h 05m
Asiana Airlines
Mon 3/912:20 pm
BKK
- SEA
1 stop16h 35m
Asiana Airlines
Deal found 2/20![Asiana Airlines logo]()
$651
This Gurufare deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2212:10 am
SEA
- BKK
1 stop30h 50m
Asiana Airlines
Tue 3/1011:55 pm
BKK
- SEA
1 stop29h 00m
Asiana Airlines
Deal found 2/20![Asiana Airlines logo]()
$656
This CrystalTravel deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/112:10 am
SEA
- BKK
1 stop30h 50m
Asiana Airlines
Sat 3/1412:20 pm
BKK
- SEA
1 stop16h 35m
Asiana Airlines
Deal found 2/19![Asiana Airlines logo]()
$642
This Gurufare deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/112:10 am
SEA
- BKK
1 stop30h 50m
Asiana Airlines
Sat 3/711:55 pm
BKK
- SEA
1 stop29h 00m
Asiana Airlines
Deal found 2/19![Asiana Airlines logo]()
$646
This FlightHub deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/112:10 am
SEA
- BKK
1 stop30h 50m
Asiana Airlines
Mon 3/912:20 pm
BKK
- SEA
1 stop16h 35m
Asiana Airlines
Deal found 2/21![Asiana Airlines logo]()
$659
This Justfly.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/109:45 am
SEA
- BKK
1 stop20h 15m
Singapore Airlines
Mon 4/206:30 pm
BKK
- SEA
1 stop28h 15m
Singapore Airlines
Deal found 2/19![Singapore Airlines logo]()
$680
This FlightHub deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1510:30 pm
SEA
- BKK
1 stop23h 30m
Philippine Airlines
Wed 4/291:25 pm
BKK
- SEA
1 stop20h 40m
Philippine Airlines
Deal found 2/19![Philippine Airlines logo]()
$692
This FlightHub deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2510:30 pm
SEA
- BKK
1 stop23h 30m
Philippine Airlines
Thu 4/301:25 pm
BKK
- SEA
1 stop20h 40m
Philippine Airlines
Deal found 2/21![Philippine Airlines logo]()
$694
This FlightHub deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2510:30 pm
SEA
- BKK
1 stop23h 30m
Philippine Airlines
Wed 4/11:25 pm
BKK
- SEA
1 stop20h 40m
Philippine Airlines
Deal found 2/20![Philippine Airlines logo]()
$695
This Justfly.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/269:45 am
SEA
- BKK
1 stop43h 00m
Singapore Airlines
Wed 4/11:35 pm
BKK
- SEA
1 stop33h 10m
Singapore Airlines
Deal found 2/20![Singapore Airlines logo]()
$647
This Gurufare deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/269:45 am
SEA
- BKK
1 stop20h 15m
Multiple Airlines
Tue 4/283:30 pm
BKK
- SEA
2 stops31h 59m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$650
This Gurufare deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3111:00 am
SEA
- BKK
1 stop22h 00m
Hainan Airlines
Fri 5/11:50 pm
BKK
- SEA
1 stop33h 10m
Hainan Airlines
Deal found 2/18![Hainan Airlines logo]()
$672
One-way flights from Seattle to ThailandSearch for one-way flight options from Seattle to Thailand. Find affordable one-way fares based on user searches. Data last updated February 22, 2026.
Search for one-way flight options from Seattle to Thailand. Find affordable one-way fares based on user searches. Data last updated February 22, 2026.
This Gurufare deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2410:15 am
SEA
- HKT
1 stop32h 30m
Singapore Airlines
Deal found 2/19![Singapore Airlines logo]()
$240
This FlightHub deal was found by Cheapflights users on 2/22. 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.
Thu 4/3010:15 am
SEA
- HKT
1 stop19h 00m
Singapore Airlines
Deal found 2/22![Singapore Airlines logo]()
$271
This oojo deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1010:15 am
SEA
- HKT
1 stop37h 55m
Singapore Airlines
Deal found 2/19![Singapore Airlines logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/811:10 pm
SEA
- BKK
1 stop33h 30m
Philippine Airlines
Deal found 2/19![Philippine Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2210:30 pm
SEA
- BKK
1 stop23h 30m
Philippine Airlines
Deal found 2/18![Philippine Airlines logo]()
$328
This Gurufare deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2411:00 am
SEA
- BKK
1 stop22h 25m
Hainan Airlines
Deal found 2/20![Hainan Airlines logo]()
$332
This Gurufare deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/812:10 am
SEA
- BKK
1 stop31h 50m
Asiana Airlines
Deal found 2/18![Asiana Airlines logo]()
$335
This FlightHub deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/38:45 am
SEA
- BKK
1 stop20h 15m
Singapore Airlines
Deal found 2/20![Singapore Airlines logo]()
$340
This FlightHub deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/109:45 am
SEA
- HKT
1 stop19h 40m
Singapore Airlines
Deal found 2/22![Singapore Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1311:10 pm
SEA
- BKK
1 stop29h 20m
Philippine Airlines
Deal found 2/18![Philippine Airlines logo]()
$343
This Gurufare deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2012:55 am
SEA
- BKK
1 stop32h 25m
Asiana Airlines
Deal found 2/18![Asiana Airlines logo]()
$344
This Gurufare deal was found by Cheapflights users on 2/22. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/112:10 am
SEA
- BKK
1 stop30h 50m
Asiana Airlines
Deal found 2/22![Asiana Airlines logo]()
$345
Find flight deals from Seattle to Thailand
Keep the following information in mind while searching for Seattle to Thailand flight deals. Data was last updated February 22, 2026.
Round-trip from | $498 (FlightHub) |
|---|---|
One-way from | $240 (Gurufare) |
Popular in | June |
Cheapest in | September |
Average price | $762 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Thailand 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 February 22, 2026.
Use the filters below to find and compare flights from Seattle to Thailand that are best for you.
Fly from
Seattle
Fly to
Thailand
Route
Depart
Return
Price
SeattlePhuket City
SEA - HKT
SEAHKT
Seattle/Tacoma Intl
Sat 4/18
10:15 am-2:10 pm
1 stop37h 55m
Phuket City
Thu 4/23
11:40 am-8:45 am
1 stop35h 05m
$498
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Tue 5/5
12:50 pm-9:45 pm
1 stop18h 55m
Bangkok Suvarnabhumi
Mon 5/18
11:30 pm-10:40 am
1 stop25h 10m
$701
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Sun 5/3
12:50 pm-11:35 pm
1 stop20h 45m
Bangkok Suvarnabhumi
Thu 5/21
9:40 pm-10:40 am
1 stop27h 00m
$701
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Sat 3/7
11:00 am-12:55 am
1 stop22h 55m
Bangkok Suvarnabhumi
Thu 3/12
12:55 am-10:00 am
1 stop23h 05m
$701
SeattlePhuket City
SEA - HKT
SEAHKT
Seattle/Tacoma Intl
Tue 4/21
11:45 am-10:50 am
1 stop33h 05m
Phuket City
Tue 4/28
11:50 am-10:05 am
1 stop36h 15m
$706
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Sun 5/3
5:00 am-9:35 am
3 stops38h 35m
Bangkok Suvarnabhumi
Tue 5/19
9:35 am-2:25 pm
1 stop18h 50m
$717
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Fri 4/24
7:35 am-11:35 pm
2 stops26h 00m
Bangkok Suvarnabhumi
Mon 5/11
9:40 pm-2:51 pm
2 stops31h 11m
$718
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Wed 7/8
7:20 am-1:05 am
2 stops27h 45m
Bangkok Suvarnabhumi
Sun 8/23
2:35 am-3:24 pm
2 stops26h 49m
$718
SeattlePhuket City
SEA - HKT
SEAHKT
Seattle/Tacoma Intl
Thu 4/16
10:15 am-10:50 am
1 stop34h 35m
Phuket City
Sat 4/25
2:15 pm-8:45 am
1 stop32h 30m
$721
SeattlePhuket City
SEA - HKT
SEAHKT
Seattle/Tacoma Intl
Tue 4/14
12:55 am-8:55 pm
1 stop30h 00m
Phuket City
Sun 5/3
10:15 pm-2:55 pm
1 stop30h 40m
$741
Showing 1-10 of 60 results
Best time to book a flight from Seattle to Thailand
Have a flexible travel schedule? Discover the best time to fly to Thailand from Seattle with our price prediction graph.
SEA-HKT
SEA-BKK
SEA-CNX
SEA-DMK
SEA-USM
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 Thailand
SEA-TH0
SEA-HKT
SEA-BKK
SEA-CNX
SEA-DMK
What is the cheapest month to book a flight from Seattle to Thailand?
Currently, May is the cheapest month in which you can book a flight from Seattle to Thailand (average of $500). Flying from Seattle to Thailand in June is currently the most expensive (average of $704). 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.
What is the cheapest time of day to fly from SEA to TH?
Find hourly flight availability from Seattle to Thailand. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2026.
One of the essential ways to save on airfare from Seattle to Thailand is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 33% on airfare.
What is the cheapest day to fly from Seattle to Thailand?
Use this chart to determine the cheapest time to fly round-trip from Seattle to Thailand. Price data was last updated on March 30, 2025.
Travelers seeking maximum savings on their Seattle to Thailand flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Thailand
Get insights into the airlines that provide service to Thailand. 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 Thailand. Reviews last updated February 22, 2026.
Read through reviews of airlines operating flights from Seattle to Thailand, such as STARLUX Airlines, EVA Air, and China Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.9
Food
8.7
Crew
9.2
Overall
8.9
Comfort
8.9
Entertainment
8.8
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Boarding
8.9
Food
8.7
Crew
9.2
Overall
8.9
Comfort
8.9
Entertainment
8.8
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Boarding
8.9
Food
8.7
Crew
9.2
Overall
8.9
Comfort
8.9
Entertainment
8.8
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Boarding
8.9
Food
8.7
Crew
9.2
Overall
8.9
Comfort
8.9
Entertainment
8.8
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Boarding
8.9
Food
8.7
Crew
9.2
Overall
8.9
Comfort
8.9
Entertainment
8.8
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Boarding
8.9
Food
8.7
Crew
9.2
Overall
8.9
Comfort
8.9
Entertainment
8.8
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Related info for your journey
Find useful and relevant information for your journey from Seattle to Thailand. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Top regions
Alternative routes for Seattle to Thailand
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Thailand by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Thailand by cabin class
Find flights from Seattle to Thailand, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Thailand flights
Browse other Seattle and Thailand flight options. Last updated on February 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Seattle to Thailand flights
Consider these flights traveling from Seattle to Thailand.
Fly to Thailand regions
Consider these flights traveling to Thailand regions.
Top 10 airlines flying from Seattle to Thailand
Discover the top 10 airlines that operate flights from Seattle to Thailand. 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 February 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$154 | Average$699 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$418 | Average$832 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$510 | Average$918 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$544 | Average$953 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$626 | Average$807 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$682 | Average$871 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$697 | Average$934 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$730 | Average$816 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$731 | Average$880 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$740 | Average$852 | FlexibilityNo cancel fee | On-timeN/A |