$338+ Cheap flights from Seattle (SEA) to Bangkok
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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
May 10 — May 171
Round-trip
1 adult, Economy
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Cheapest flights from Seattle to BangkokExplore the most affordable flight options available from Seattle to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2026.
Explore the most affordable flight options available from Seattle to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2026.
This oojo deal was found by Cheapflights users on 4/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:15 am
SEA
- BKK
1 stop19h 45m
Singapore Airlines
Mon 11/28:00 pm
BKK
- SEA
1 stop26h 10m
Singapore Airlines
Deal found 4/9![Singapore Airlines logo]()
$648
This oojo deal was found by Cheapflights users on 4/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:15 am
SEA
- BKK
1 stop41h 00m
Singapore Airlines
Thu 11/59:35 am
BKK
- SEA
1 stop36h 35m
Singapore Airlines
Deal found 4/5![Singapore Airlines logo]()
$654
This oojo deal was found by Cheapflights users on 4/8. 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.
Tue 10/1310:15 am
SEA
- BKK
1 stop41h 00m
Singapore Airlines
Thu 10/299:35 am
BKK
- SEA
1 stop36h 35m
Singapore Airlines
Deal found 4/8![Singapore Airlines logo]()
$655
This oojo deal was found by Cheapflights users on 4/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:15 am
SEA
- BKK
1 stop42h 45m
Singapore Airlines
Fri 10/239:20 am
BKK
- SEA
1 stop37h 25m
Singapore Airlines
Deal found 4/9![Singapore Airlines logo]()
$659
This oojo deal was found by Cheapflights users on 4/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:15 am
SEA
- BKK
1 stop19h 45m
Singapore Airlines
Mon 11/169:35 am
BKK
- SEA
1 stop36h 35m
Singapore Airlines
Deal found 4/6![Singapore Airlines logo]()
$665
This oojo deal was found by Cheapflights users on 4/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:15 am
SEA
- BKK
1 stop38h 00m
Singapore Airlines
Mon 9/1412:15 pm
BKK
- SEA
1 stop34h 30m
Singapore Airlines
Deal found 4/6![Singapore Airlines logo]()
$687
This oojo deal was found by Cheapflights users on 4/8. 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.
Thu 10/110:15 am
SEA
- BKK
1 stop41h 00m
Singapore Airlines
Sat 10/318:00 pm
BKK
- SEA
1 stop26h 10m
Singapore Airlines
Deal found 4/8![Singapore Airlines logo]()
$688
This oojo deal was found by Cheapflights users on 4/8. 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 10/1710:15 am
SEA
- BKK
1 stop42h 45m
Singapore Airlines
Sat 10/241:35 pm
BKK
- SEA
1 stop32h 35m
Singapore Airlines
Deal found 4/8![Singapore Airlines logo]()
$701
This oojo deal was found by Cheapflights users on 4/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:15 am
SEA
- BKK
1 stop41h 00m
Singapore Airlines
Thu 10/299:35 am
BKK
- SEA
1 stop36h 35m
Singapore Airlines
Deal found 4/9![Singapore Airlines logo]()
$702
This Mytrip deal was found by Cheapflights users on 4/10. 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.
Mon 8/2412:55 am
SEA
- DMK
2 stops32h 10m
Multiple Airlines
Mon 9/147:30 am
DMK
- SEA
2 stops21h 25m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$1,124
This Mytrip deal was found by Cheapflights users on 4/7. 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 8/3112:55 am
SEA
- DMK
2 stops32h 10m
Multiple Airlines
Tue 9/87:30 am
DMK
- SEA
2 stops21h 25m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$1,126
This Mytrip deal was found by Cheapflights users on 4/9. 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.
Mon 9/1412:55 am
SEA
- DMK
2 stops32h 10m
Multiple Airlines
Fri 10/27:30 am
DMK
- SEA
2 stops21h 25m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$1,134
Best flights from Seattle to BangkokDiscover carefully curated flight deals from Seattle to Bangkok that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 10, 2026.
Discover carefully curated flight deals from Seattle to Bangkok that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 10, 2026.
This Korean Air deal was found by Cheapflights users on 4/5. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:50 pm
SEA
- BKK
1 stop18h 55m
Korean Air
Tue 5/199:40 pm
BKK
- SEA
2 stops31h 25m
Korean Air
Deal found 4/5![Korean Air logo]()
$870
This United Airlines deal was found by Cheapflights users on 4/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/308:45 am
SEA
- BKK
2 stops34h 50m
United Airlines
Tue 5/193:45 pm
BKK
- SEA
3 stops36h 51m
United Airlines
Deal found 4/7![United Airlines logo]()
$1,199
This Delta deal was found by Cheapflights users on 4/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/41:05 pm
SEA
- BKK
1 stop20h 30m
Delta
Mon 7/139:50 am
BKK
- SEA
1 stop17h 51m
Delta
Deal found 4/5![Delta logo]()
$1,207
This Emirates deal was found by Cheapflights users on 4/8. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/195:15 pm
SEA
- BKK
1 stop29h 00m
Emirates
Tue 6/23:40 am
BKK
- SEA
1 stop23h 45m
Emirates
Deal found 4/8![Emirates logo]()
$1,244
This Qatar Airways deal was found by Cheapflights users on 4/9. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:25 pm
SEA
- DMK
2 stops30h 15m
Multiple Airlines
Fri 6/51:45 pm
DMK
- SEA
2 stops38h 20m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$1,361
This Korean Air deal was found by Cheapflights users on 4/6. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:59 pm
SEA
- BKK
2 stops35h 46m
Korean Air
Wed 5/2011:30 pm
BKK
- SEA
2 stops35h 00m
Korean Air
Deal found 4/6![Korean Air logo]()
$875
This Korean Air deal was found by Cheapflights users on 4/9. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:00 am
SEA
- BKK
2 stops26h 35m
Korean Air
Mon 5/119:40 pm
BKK
- SEA
1 stop27h 00m
Korean Air
Deal found 4/9![Korean Air logo]()
$901
This United Airlines deal was found by Cheapflights users on 4/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:36 pm
SEA
- BKK
3 stops47h 59m
United Airlines
Fri 5/153:45 pm
BKK
- SEA
3 stops43h 21m
United Airlines
Deal found 4/5![United Airlines logo]()
$1,292
This Korean Air deal was found by Cheapflights users on 4/6. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:50 pm
SEA
- BKK
1 stop18h 55m
Korean Air
Tue 5/199:40 pm
BKK
- SEA
2 stops32h 21m
Korean Air
Deal found 4/6![Korean Air logo]()
$1,070
This Emirates deal was found by Cheapflights users on 4/9. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/115:15 pm
SEA
- BKK
1 stop29h 15m
Emirates
Sat 7/42:50 am
BKK
- SEA
1 stop24h 35m
Emirates
Deal found 4/9![Emirates logo]()
$1,357
This Mytrip deal was found by Cheapflights users on 4/7. 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 5/101:15 am
SEA
- DMK
2 stops26h 20m
Multiple Airlines
Mon 5/181:40 pm
DMK
- SEA
2 stops19h 35m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$1,421
This United Airlines deal was found by Cheapflights users on 4/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:58 pm
SEA
- BKK
2 stops24h 37m
United Airlines
Fri 5/157:00 am
BKK
- SEA
2 stops30h 29m
United Airlines
Deal found 4/5![United Airlines logo]()
$1,357
This Mytrip deal was found by Cheapflights users on 4/7. 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.
Fri 4/2412:55 am
SEA
- DMK
2 stops28h 35m
Multiple Airlines
Thu 4/303:00 am
DMK
- SEA
2 stops25h 55m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$1,421
This Emirates deal was found by Cheapflights users on 4/5. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/85:15 pm
SEA
- BKK
1 stop24h 45m
Emirates
Thu 8/271:35 am
BKK
- SEA
1 stop25h 50m
Emirates
Deal found 4/5![Emirates logo]()
$1,432
This Korean Air deal was found by Cheapflights users on 4/5. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/114:20 pm
SEA
- BKK
2 stops41h 15m
Korean Air
Thu 5/149:40 pm
BKK
- SEA
2 stops33h 13m
Korean Air
Deal found 4/5![Korean Air logo]()
$1,320
This Kiwi.com deal was found by Cheapflights users on 4/5. 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.
Mon 4/1311:45 am
SEA
- DMK
1 stop20h 20m
Multiple Airlines
Wed 5/138:10 am
DMK
- SEA
2 stops38h 47m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,537
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 5/64:30 pm
SEA
- DMK
2 stops29h 15m
Multiple Airlines
Wed 5/138:50 pm
DMK
- SEA
1 stop26h 15m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$1,628
This Kiwi.com deal was found by Cheapflights users on 4/5. 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.
Thu 4/1611:45 am
SEA
- DMK
1 stop20h 20m
Multiple Airlines
Thu 5/149:20 am
DMK
- SEA
2 stops25h 47m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,633
This Mytrip deal was found by Cheapflights users on 4/9. 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 5/131:50 am
SEA
- DMK
2 stops25h 45m
Multiple Airlines
Fri 5/227:30 am
DMK
- SEA
2 stops21h 25m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$1,635
This Kiwi.com deal was found by Cheapflights users on 4/5. 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.
Thu 4/1611:45 am
SEA
- DMK
1 stop20h 20m
Multiple Airlines
Wed 5/133:25 pm
DMK
- SEA
2 stops30h 52m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,636
This Kiwi.com deal was found by Cheapflights users on 4/5. 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.
Wed 4/1511:45 am
SEA
- DMK
1 stop20h 20m
Multiple Airlines
Wed 5/138:10 am
DMK
- SEA
2 stops22h 15m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,662
This Kiwi.com deal was found by Cheapflights users on 4/5. 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.
Thu 4/3011:05 am
SEA
- DMK
1 stop27h 15m
Multiple Airlines
Thu 5/216:00 am
DMK
- SEA
1 stop17h 05m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,668
This Mytrip deal was found by Cheapflights users on 4/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2012:50 am
SEA
- DMK
2 stops30h 00m
Multiple Airlines
Sun 6/283:15 pm
DMK
- SEA
2 stops35h 10m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,788
This Mytrip deal was found by Cheapflights users on 4/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/51:50 am
SEA
- DMK
2 stops23h 00m
Multiple Airlines
Tue 6/98:10 am
DMK
- SEA
3 stops24h 23m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,889
Last-minute flights from Seattle to BangkokDiscover last-minute flight deals from Seattle to Bangkok. Data last updated April 10, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Bangkok. Data last updated April 10, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 4/7. 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.
Fri 4/249:45 am
SEA
- DMK
1 stop22h 40m
Multiple Airlines
Sat 9/57:25 pm
DMK
- SEA
2 stops33h 30m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$1,177
This Mytrip deal was found by Cheapflights users on 4/9. 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.
Sat 4/251:15 am
SEA
- DMK
2 stops28h 45m
Multiple Airlines
Sun 5/107:25 pm
DMK
- SEA
2 stops29h 15m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$1,157
This Vliegwinkel deal was found by Cheapflights users on 4/8. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2612:50 pm
SEA
- BKK
1 stop20h 45m
Korean Air
Tue 5/129:50 am
BKK
- SEA
1 stop38h 50m
Korean Air
Deal found 4/8![Korean Air logo]()
$741
This lastminute.com deal was found by Cheapflights users on 4/9. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2612:50 pm
SEA
- BKK
1 stop20h 45m
Korean Air
Sun 5/1011:30 pm
BKK
- SEA
1 stop25h 10m
Korean Air
Deal found 4/9![Korean Air logo]()
$765
This Fareboom deal was found by Cheapflights users on 4/9. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/261:15 am
SEA
- BKK
1 stop34h 10m
Multiple Airlines
Mon 6/225:50 pm
BKK
- SEA
1 stop36h 20m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$773
This Delta deal was found by Cheapflights users on 4/9. 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.
Sun 4/261:00 pm
SEA
- BKK
1 stop20h 35m
Delta
Wed 5/209:40 pm
BKK
- SEA
1 stop29h 31m
Delta
Deal found 4/9![Delta logo]()
$796
This Fareboom deal was found by Cheapflights users on 4/9. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2811:10 pm
SEA
- BKK
1 stop33h 30m
Philippine Airlines
Tue 6/911:40 pm
BKK
- SEA
1 stop34h 25m
Philippine Airlines
Deal found 4/9![Philippine Airlines logo]()
$760
This Korean Air deal was found by Cheapflights users on 4/8. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:50 pm
SEA
- BKK
1 stop34h 45m
Korean Air
Mon 5/119:40 pm
BKK
- SEA
1 stop27h 00m
Korean Air
Deal found 4/8![Korean Air logo]()
$800
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 5/14:03 pm
SEA
- BKK
2 stops31h 32m
Korean Air
Sun 5/1011:30 pm
BKK
- SEA
1 stop25h 10m
Korean Air
Deal found 4/9![Korean Air logo]()
$785
This Korean Air deal was found by Cheapflights users on 4/9. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:00 am
SEA
- BKK
2 stops26h 35m
Korean Air
Tue 5/129:50 am
BKK
- SEA
1 stop38h 50m
Korean Air
Deal found 4/9![Korean Air logo]()
$806
This Korean Air deal was found by Cheapflights users on 4/8. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:53 pm
SEA
- BKK
2 stops42h 52m
Korean Air
Mon 5/119:40 pm
BKK
- SEA
1 stop27h 00m
Korean Air
Deal found 4/8![Korean Air logo]()
$805
This Kiwi.com deal was found by Cheapflights users on 4/7. 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.
Thu 5/1411:10 pm
SEA
- DMK
1 stop22h 15m
Multiple Airlines
Mon 5/187:30 am
DMK
- SEA
2 stops21h 25m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$1,246
One-way flights from Seattle to BangkokSearch for one-way flight options from Seattle to Bangkok. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
Search for one-way flight options from Seattle to Bangkok. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
This oojo deal was found by Cheapflights users on 4/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:45 am
SEA
- BKK
1 stop32h 20m
Singapore Airlines
Deal found 4/5![Singapore Airlines logo]()
$338
This oojo deal was found by Cheapflights users on 4/8. 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.
Fri 4/249:45 am
SEA
- BKK
1 stop20h 15m
Singapore Airlines
Deal found 4/8![Singapore Airlines logo]()
$371
This Kiwi.com deal was found by Cheapflights users on 4/7. 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.
Thu 4/239:45 am
SEA
- BKK
1 stop32h 20m
Singapore Airlines
Deal found 4/7![Singapore Airlines logo]()
$380
This Fareboom deal was found by Cheapflights users on 4/8. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:00 pm
SEA
- BKK
1 stop28h 35m
Condor
Deal found 4/8![Condor logo]()
$386
This Fareboom deal was found by Cheapflights users on 4/8. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:45 pm
SEA
- BKK
2 stops26h 55m
Asiana Airlines
Deal found 4/8![Asiana Airlines logo]()
$394
This Fareboom deal was found by Cheapflights users on 4/8. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:45 pm
SEA
- BKK
2 stops26h 55m
Asiana Airlines
Deal found 4/8![Asiana Airlines logo]()
$400
This Fareboom deal was found by Cheapflights users on 4/9. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:10 pm
SEA
- BKK
1 stop19h 45m
Philippine Airlines
Deal found 4/9![Philippine Airlines logo]()
$405
This SmartFares deal was found by Cheapflights users on 4/6. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:00 am
SEA
- BKK
1 stop22h 00m
Hainan Airlines
Deal found 4/6![Hainan Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 4/7. 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.
Sat 4/1811:00 am
SEA
- BKK
1 stop35h 20m
Hainan Airlines
Deal found 4/7![Hainan Airlines logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 4/9. 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.
Wed 4/2912:50 pm
SEA
- BKK
1 stop34h 45m
Korean Air
Deal found 4/9![Korean Air logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 5/512:50 pm
SEA
- DMK
2 stops41h 05m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$472
This Kiwi.com deal was found by Cheapflights users on 4/9. 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.
Thu 4/3012:50 pm
SEA
- DMK
2 stops41h 05m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$476
Find flight deals from Seattle to Bangkok
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Bangkok (TH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 10, 2026.
Round-trip from | $648 (oojo) |
|---|---|
One-way from | $338 (oojo) |
Popular in | June |
Cheapest in | September |
Average price | $800 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Bangkok that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 10, 2026.
Use the filters below to find and compare flights from Seattle to Bangkok that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Mon 4/27
12:50 pm-9:45 pm
1 stop18h 55m
Bangkok Suvarnabhumi
Tue 5/19
9:40 pm-3:05 pm
2 stops31h 25m
$870
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Sun 4/26
7:59 pm-9:45 pm
2 stops35h 46m
Bangkok Suvarnabhumi
Wed 5/20
11:30 pm-8:30 pm
2 stops35h 00m
$875
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Tue 4/28
7:00 am-11:35 pm
2 stops26h 35m
Bangkok Suvarnabhumi
Mon 5/11
9:40 pm-10:40 am
1 stop27h 00m
$901
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Wed 4/29
12:50 pm-9:45 pm
1 stop18h 55m
Bangkok Suvarnabhumi
Tue 5/19
9:40 pm-4:01 pm
2 stops32h 21m
$1,070
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Thu 4/30
8:45 am-9:35 am
2 stops34h 50m
Bangkok Suvarnabhumi
Tue 5/19
3:45 pm-2:36 pm
3 stops36h 51m
$1,199
Quickest round-trip
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Sat 7/4
1:05 pm-11:35 pm
1 stop20h 30m
Bangkok Suvarnabhumi
Mon 7/13
9:50 am-1:41 pm
1 stop17h 51m
$1,207
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Tue 5/19
5:15 pm-12:15 pm
1 stop29h 00m
Bangkok Suvarnabhumi
Tue 6/2
3:40 am-1:25 pm
1 stop23h 45m
$1,244
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Fri 5/1
7:36 pm-9:35 am
3 stops47h 59m
Bangkok Suvarnabhumi
Fri 5/15
3:45 pm-9:06 pm
3 stops43h 21m
$1,292
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Mon 5/11
4:20 pm-11:35 pm
2 stops41h 15m
Bangkok Suvarnabhumi
Thu 5/14
9:40 pm-4:53 pm
2 stops33h 13m
$1,320
SeattleBangkok
SEA - BKK
SEABKK
Seattle/Tacoma Intl
Thu 6/11
5:15 pm-12:30 pm
1 stop29h 15m
Bangkok Suvarnabhumi
Sat 7/4
2:50 am-1:25 pm
1 stop24h 35m
$1,357
Showing 1-10 of 45 resultsSorted by cheapest first
Best time to book a flight from Seattle to Bangkok
Have a flexible travel schedule? Discover the best time to fly to Bangkok from Seattle with our price prediction graph.
SEA-TH1
SEA-BKK
SEA-DMK
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 Bangkok
SEA-TH1
SEA-BKK
SEA-DMK
How far ahead should I book a flight from Seattle to Bangkok?
Use this chart to determine the optimal time to book a round-trip flight from Seattle to Bangkok. Price data was last updated on April 3, 2026.
To ensure you get the cheapest price possible for a flight from Seattle to Bangkok, you should look to book at least 74 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 Bangkok?
Currently, April is the cheapest month in which you can book a flight from Seattle to Bangkok (average of $508). Flying from Seattle to Bangkok in June is currently the most expensive (average of $792). 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 Bangkok?
Reviews of airlines servicing Bangkok
Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated April 10, 2026.
Read reviews from past customers who have flown STARLUX Airlines,EVA Air, andChina Airlines from Seattle to Bangkok. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
8.7
Crew
9.2
Overall
8.9
Entertainment
8.8
Comfort
8.9
Boarding
9.0
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Food
8.7
Crew
9.2
Overall
8.9
Entertainment
8.8
Comfort
8.9
Boarding
9.0
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Food
8.7
Crew
9.2
Overall
8.9
Entertainment
8.8
Comfort
8.9
Boarding
9.0
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Food
8.7
Crew
9.2
Overall
8.9
Entertainment
8.8
Comfort
8.9
Boarding
9.0
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Food
8.7
Crew
9.2
Overall
8.9
Entertainment
8.8
Comfort
8.9
Boarding
9.0
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Food
8.7
Crew
9.2
Overall
8.9
Entertainment
8.8
Comfort
8.9
Boarding
9.0
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 Bangkok. 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.
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Popular flights
Alternative routes for Seattle to Bangkok
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Bangkok by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Bangkok by cabin class
Find flights from Seattle to Bangkok, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Bangkok flights
Browse other Seattle and Bangkok flight options. Last updated on April 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 April 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 10 airlines flying from Seattle to Bangkok
Discover the top 10 airlines that operate flights from Seattle to Bangkok. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$149 | Average$682 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$510 | Average$662 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$623 | Average$1,882 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$627 | Average$691 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$656 | Average$741 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$680 | Average$847 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$694 | Average$856 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$697 | Average$906 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$704 | Average$798 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$712 | Average$809 | FlexibilityNo cancel fee | On-time70% |