$570+ Cheap flights from St. Louis (STL) 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Jul 20 — Jul 271
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from St. Louis to ThailandExplore the most affordable flight options available from St. Louis to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.
Explore the most affordable flight options available from St. Louis to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.
This oojo deal was found by Cheapflights users on 6/17. 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 8/206:54 am
STL
- BKK
2 stops28h 56m
Etihad Airways
Wed 11/188:30 am
BKK
- STL
2 stops41h 47m
Etihad Airways
Deal found 6/17![Etihad Airways logo]()
$1,027
This oojo deal was found by Cheapflights users on 6/18. 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.
Wed 8/1910:22 am
STL
- BKK
2 stops32h 23m
Etihad Airways
Fri 9/43:55 pm
BKK
- STL
2 stops39h 47m
Etihad Airways
Deal found 6/18![Etihad Airways logo]()
$1,030
This oojo deal was found by Cheapflights users on 6/15. 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 8/198:00 pm
STL
- BKK
2 stops39h 50m
Etihad Airways
Wed 8/263:55 pm
BKK
- STL
2 stops32h 59m
Etihad Airways
Deal found 6/15![Etihad Airways logo]()
$1,036
This Etihad Airways deal was found by Cheapflights users on 6/15. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:22 am
STL
- BKK
2 stops37h 48m
Multiple Airlines
Wed 11/182:40 pm
BKK
- STL
2 stops35h 37m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$1,038
This BusinessClass deal was found by Cheapflights users on 6/19. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3110:22 am
STL
- BKK
2 stops25h 28m
Etihad Airways
Tue 9/83:15 am
BKK
- STL
2 stops29h 29m
Etihad Airways
Deal found 6/19![Etihad Airways logo]()
$1,041
This oojo deal was found by Cheapflights users on 6/19. 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.
Wed 12/27:36 pm
STL
- BKK
2 stops45h 59m
Etihad Airways
Wed 2/38:30 am
BKK
- STL
2 stops43h 34m
Etihad Airways
Deal found 6/19![Etihad Airways logo]()
$1,058
This oojo deal was found by Cheapflights users on 6/16. 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 10/287:38 am
STL
- BKK
2 stops34h 57m
Etihad Airways
Fri 11/278:30 am
BKK
- STL
2 stops47h 57m
Etihad Airways
Deal found 6/16![Etihad Airways logo]()
$1,061
This oojo deal was found by Cheapflights users on 6/17. 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 11/42:50 pm
STL
- BKK
2 stops43h 30m
Etihad Airways
Fri 11/277:55 pm
BKK
- STL
2 stops36h 32m
Etihad Airways
Deal found 6/17![Etihad Airways logo]()
$1,062
This Etihad Airways deal was found by Cheapflights users on 6/17. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:19 am
STL
- HKT
2 stops30h 31m
Multiple Airlines
Sat 10/103:20 am
HKT
- STL
2 stops28h 48m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$1,068
This oojo deal was found by Cheapflights users on 6/15. 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 8/126:54 am
STL
- BKK
2 stops28h 56m
Etihad Airways
Fri 8/213:55 pm
BKK
- STL
2 stops33h 00m
Etihad Airways
Deal found 6/15![Etihad Airways logo]()
$1,089
This oojo deal was found by Cheapflights users on 6/18. 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.
Wed 7/89:08 am
STL
- BKK
2 stops39h 02m
Etihad Airways
Wed 8/123:55 pm
BKK
- STL
2 stops32h 59m
Etihad Airways
Deal found 6/18![Etihad Airways logo]()
$1,092
This oojo deal was found by Cheapflights users on 6/19. 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.
Sat 8/81:54 pm
STL
- BKK
2 stops52h 51m
Etihad Airways
Wed 8/193:55 pm
BKK
- STL
2 stops32h 59m
Etihad Airways
Deal found 6/19![Etihad Airways logo]()
$1,096
Best flights from St. Louis to ThailandDiscover carefully curated flight deals from St. Louis to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 20, 2026.
Discover carefully curated flight deals from St. Louis to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 20, 2026.
This Etihad Airways deal was found by Cheapflights users on 6/15. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/138:34 am
STL
- BKK
2 stops27h 16m
Multiple Airlines
Sat 8/223:55 pm
BKK
- STL
2 stops32h 59m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$1,038
This oojo deal was found by Cheapflights users on 6/15. 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 8/66:00 am
STL
- HKT
2 stops29h 50m
Etihad Airways
Fri 8/283:20 pm
HKT
- STL
2 stops33h 35m
Etihad Airways
Deal found 6/15![Etihad Airways logo]()
$1,121
This Qatar Airways deal was found by Cheapflights users on 6/15. 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.
Sun 9/136:29 am
STL
- HKT
2 stops37h 16m
Qatar Airways
Wed 9/169:20 am
HKT
- STL
2 stops50h 39m
Qatar Airways
Deal found 6/15![Qatar Airways logo]()
$1,341
This Delta deal was found by Cheapflights users on 6/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:30 am
STL
- BKK
2 stops30h 35m
Delta
Fri 8/2111:30 pm
BKK
- STL
2 stops33h 30m
Delta
Deal found 6/18![Delta logo]()
$1,357
This United Airlines deal was found by Cheapflights users on 6/15. 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 9/111:36 pm
STL
- BKK
3 stops31h 59m
United Airlines
Sat 9/193:45 pm
BKK
- STL
3 stops32h 17m
United Airlines
Deal found 6/15![United Airlines logo]()
$1,377
This Etihad Airways deal was found by Cheapflights users on 6/19. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:22 am
STL
- BKK
2 stops32h 23m
Multiple Airlines
Wed 11/182:40 pm
BKK
- STL
2 stops40h 14m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$1,038
This BusinessClass deal was found by Cheapflights users on 6/18. 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.
Tue 7/149:25 am
STL
- HKT
2 stops26h 25m
Etihad Airways
Tue 7/219:25 am
HKT
- STL
2 stops43h 56m
Etihad Airways
Deal found 6/18![Etihad Airways logo]()
$1,194
This Etihad Airways deal was found by Cheapflights users on 6/17. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/810:22 am
STL
- BKK
2 stops25h 28m
Multiple Airlines
Wed 8/193:55 pm
BKK
- STL
2 stops32h 59m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$1,158
This United Airlines deal was found by Cheapflights users on 6/17. 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 8/134:40 pm
STL
- BKK
3 stops52h 55m
United Airlines
Sat 8/223:45 pm
BKK
- STL
2 stops38h 54m
United Airlines
Deal found 6/17![United Airlines logo]()
$1,401
This Delta deal was found by Cheapflights users on 6/16. 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 7/146:00 am
STL
- HKT
2 stops28h 10m
Delta
Tue 7/2111:25 pm
HKT
- STL
2 stops34h 50m
Delta
Deal found 6/16![Delta logo]()
$1,597
This United Airlines deal was found by Cheapflights users on 6/18. 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.
Wed 7/89:06 am
STL
- BKK
3 stops36h 29m
United Airlines
Mon 7/209:35 am
BKK
- STL
2 stops50h 01m
United Airlines
Deal found 6/18![United Airlines logo]()
$1,506
This EVA Air deal was found by Cheapflights users on 6/16. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:36 pm
STL
- CNX
2 stops26h 49m
Multiple Airlines
Mon 8/2411:35 am
CNX
- STL
2 stops36h 50m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$1,424
This Delta deal was found by Cheapflights users on 6/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/26:00 am
STL
- HKT
2 stops28h 10m
Delta
Sun 8/911:25 pm
HKT
- STL
2 stops28h 52m
Delta
Deal found 6/18![Delta logo]()
$1,597
This Qatar Airways deal was found by Cheapflights users on 6/17. 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.
Fri 8/211:25 pm
STL
- CNX
3 stops31h 55m
Qatar Airways
Mon 8/248:00 pm
CNX
- STL
3 stops39h 34m
Qatar Airways
Deal found 6/17![Qatar Airways logo]()
$1,825
This BusinessClass deal was found by Cheapflights users on 6/16. 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.
Tue 6/3012:45 pm
STL
- HKT
2 stops53h 55m
Etihad Airways
Fri 7/39:20 pm
HKT
- STL
2 stops27h 30m
Etihad Airways
Deal found 6/16![Etihad Airways logo]()
$1,678
This Delta deal was found by Cheapflights users on 6/17. 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 7/167:08 am
STL
- HKT
2 stops27h 02m
Delta
Thu 7/2311:25 pm
HKT
- STL
2 stops34h 50m
Delta
Deal found 6/17![Delta logo]()
$1,597
This Gotogate deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:02 am
STL
- HKT
2 stops37h 43m
Multiple Airlines
Fri 8/286:20 pm
HKT
- STL
3 stops31h 46m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$1,592
This Justfly.com deal was found by Cheapflights users on 6/15. 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.
Wed 7/87:56 pm
STL
- CNX
2 stops26h 29m
Multiple Airlines
Wed 7/2211:35 am
CNX
- STL
2 stops48h 24m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$1,661
This Gotogate deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:02 am
STL
- HKT
2 stops37h 43m
Multiple Airlines
Thu 7/2311:50 am
HKT
- STL
3 stops38h 02m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$1,695
This Gotogate deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:56 pm
STL
- HKT
2 stops47h 49m
Multiple Airlines
Tue 7/2111:50 am
HKT
- STL
3 stops38h 02m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$1,710
Last-minute flights from St. Louis to ThailandDiscover last-minute flight deals from St. Louis to Thailand. Data last updated June 20, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Thailand. Data last updated June 20, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Tue 7/71:38 pm
STL
- BKK
3 stops31h 57m
United Airlines
Wed 7/159:35 am
BKK
- STL
2 stops42h 11m
United Airlines
Deal found 6/19![United Airlines logo]()
$1,367
This oojo deal was found by Cheapflights users on 6/18. 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.
Wed 7/89:08 am
STL
- BKK
2 stops39h 02m
Etihad Airways
Wed 8/123:55 pm
BKK
- STL
2 stops32h 59m
Etihad Airways
Deal found 6/18![Etihad Airways logo]()
$1,092
This Delta deal was found by Cheapflights users on 6/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/97:55 pm
STL
- BKK
2 stops41h 10m
Delta
Thu 7/169:40 pm
BKK
- STL
2 stops39h 01m
Delta
Deal found 6/18![Delta logo]()
$1,362
This BusinessClass deal was found by Cheapflights users on 6/18. 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.
Tue 7/149:25 am
STL
- HKT
2 stops26h 25m
Etihad Airways
Tue 7/219:25 am
HKT
- STL
2 stops43h 56m
Etihad Airways
Deal found 6/18![Etihad Airways logo]()
$1,194
This Delta deal was found by Cheapflights users on 6/16. 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 7/146:00 am
STL
- HKT
2 stops28h 10m
Delta
Tue 7/2111:25 pm
HKT
- STL
2 stops34h 50m
Delta
Deal found 6/16![Delta logo]()
$1,597
This Air Canada deal was found by Cheapflights users on 6/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1512:10 pm
STL
- BKK
2 stops47h 45m
Air Canada
Wed 7/227:05 am
BKK
- STL
2 stops47h 37m
Air Canada
Deal found 6/19![Air Canada logo]()
$1,439
This Ovago deal was found by Cheapflights users on 6/16. 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.
Thu 7/169:25 am
STL
- HKT
2 stops33h 15m
Etihad Airways
Thu 7/239:25 am
HKT
- STL
2 stops45h 56m
Etihad Airways
Deal found 6/16![Etihad Airways logo]()
$1,363
This Air Canada deal was found by Cheapflights users on 6/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/168:55 am
STL
- BKK
2 stops26h 40m
Air Canada
Wed 7/227:05 am
BKK
- STL
2 stops47h 37m
Air Canada
Deal found 6/20![Air Canada logo]()
$1,437
This Air Canada deal was found by Cheapflights users on 6/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1712:10 pm
STL
- BKK
2 stops52h 55m
Air Canada
Fri 7/247:05 am
BKK
- STL
2 stops23h 37m
Air Canada
Deal found 6/16![Air Canada logo]()
$1,461
This Ovago deal was found by Cheapflights users on 6/19. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/192:31 pm
STL
- HKT
2 stops28h 09m
Etihad Airways
Sun 7/269:25 am
HKT
- STL
2 stops43h 56m
Etihad Airways
Deal found 6/19![Etihad Airways logo]()
$1,188
This Air Canada deal was found by Cheapflights users on 6/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/232:40 pm
STL
- BKK
2 stops43h 15m
Air Canada
Thu 8/137:45 am
BKK
- STL
2 stops46h 57m
Air Canada
Deal found 6/17![Air Canada logo]()
$1,455
This Delta deal was found by Cheapflights users on 6/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/243:58 pm
STL
- BKK
2 stops33h 37m
Delta
Sat 8/159:40 pm
BKK
- STL
2 stops39h 01m
Delta
Deal found 6/19![Delta logo]()
$1,357
One-way flights from St. Louis to ThailandSearch for one-way flight options from St. Louis to Thailand. Find affordable one-way fares based on user searches. Data last updated June 20, 2026.
Search for one-way flight options from St. Louis to Thailand. Find affordable one-way fares based on user searches. Data last updated June 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 8/137:10 pm
STL
- BKK
3 stops49h 45m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$570
This Kiwi.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/37:10 pm
STL
- BKK
3 stops53h 00m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$584
This oojo deal was found by Cheapflights users on 6/19. 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.
Wed 7/226:55 am
STL
- BKK
2 stops36h 20m
Qatar Airways
Deal found 6/19![Qatar Airways logo]()
$622
This BusinessClass deal was found by Cheapflights users on 6/16. 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.
Wed 8/127:56 pm
STL
- BKK
2 stops28h 04m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$634
This KAYAK deal was found by Cheapflights users on 6/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:00 am
STL
- BKK
2 stops27h 35m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$643
This oojo deal was found by Cheapflights users on 6/15. 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.
Mon 8/32:31 pm
STL
- BKK
2 stops34h 24m
Qatar Airways
Deal found 6/15![Qatar Airways logo]()
$656
This Kiwi.com deal was found by Cheapflights users on 6/19. 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.
Sat 12/57:00 am
STL
- BKK
3 stops50h 00m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$683
This Kiwi.com deal was found by Cheapflights users on 6/19. 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.
Fri 12/47:00 am
STL
- BKK
2 stops51h 25m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$691
Find flight deals from St. Louis to Thailand
Keep the following information in mind while searching for St. Louis to Thailand flight deals. Data was last updated June 20, 2026.
Round-trip from | $1,025 (oojo) |
|---|---|
One-way from | $570 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $1,390 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis 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 June 20, 2026.
Use the filters below to find and compare flights from St. Louis to Thailand that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Thu 8/13
8:34 am-11:50 pm
2 stops27h 16m
Bangkok Suvarnabhumi
Sat 8/22
3:55 pm-12:54 pm
2 stops32h 59m
$1,038
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Thu 8/20
10:22 am-6:45 am
2 stops32h 23m
Bangkok Suvarnabhumi
Wed 11/18
2:40 pm-5:54 pm
2 stops40h 14m
$1,038
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Thu 8/6
6:00 am-11:50 pm
2 stops29h 50m
Phuket City
Fri 8/28
3:20 pm-12:55 pm
2 stops33h 35m
$1,121
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sat 8/8
10:22 am-11:50 pm
2 stops25h 28m
Bangkok Suvarnabhumi
Wed 8/19
3:55 pm-12:54 pm
2 stops32h 59m
$1,158
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Tue 7/14
9:25 am-11:50 pm
2 stops26h 25m
Phuket City
Tue 7/21
9:25 am-5:21 pm
2 stops43h 56m
$1,194
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Sun 9/13
6:29 am-7:45 am
2 stops37h 16m
Phuket City
Wed 9/16
9:20 am-11:59 pm
2 stops50h 39m
$1,341
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 8/12
6:30 am-1:05 am
2 stops30h 35m
Bangkok Suvarnabhumi
Fri 8/21
11:30 pm-9:00 pm
2 stops33h 30m
$1,357
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Fri 9/11
1:36 pm-9:35 am
3 stops31h 59m
Bangkok Suvarnabhumi
Sat 9/19
3:45 pm-12:02 pm
3 stops32h 17m
$1,377
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Thu 8/13
4:40 pm-9:35 am
3 stops52h 55m
Bangkok Suvarnabhumi
Sat 8/22
3:45 pm-6:39 pm
2 stops38h 54m
$1,401
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Fri 8/21
7:36 pm-10:25 am
2 stops26h 49m
Chiang Mai
Mon 8/24
11:35 am-12:25 pm
2 stops36h 50m
$1,424
Showing 1-10 of 26 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Thailand
Have a flexible travel schedule? Discover the best time to fly to Thailand from St. Louis with our price prediction graph.
STL-BKK
STL-HKT
STL-CNX
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 St. Louis to Thailand
STL-TH0
STL-BKK
STL-HKT
STL-CNX
What is the cheapest month to book a flight from St. Louis to Thailand?
Currently, February is the cheapest month in which you can book a flight from St. Louis to Thailand (average of $167). Flying from St. Louis to Thailand in June is currently the most expensive (average of $1,210). 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 far ahead should I book a flight from St. Louis to Thailand?
The best time to book flights from St. Louis to Thailand is 7 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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 June 20, 2026.
See what other customers who have flown with Japan Airlines,Delta, andCathay Pacific from St. Louis to Thailand have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.4
Overall
8.3
Crew
8.7
Comfort
8.2
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Boarding
8.4
Overall
8.3
Crew
8.7
Comfort
8.2
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Boarding
8.4
Overall
8.3
Crew
8.7
Comfort
8.2
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Boarding
8.4
Overall
8.3
Crew
8.7
Comfort
8.2
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Boarding
8.4
Overall
8.3
Crew
8.7
Comfort
8.2
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Boarding
8.4
Overall
8.3
Crew
8.7
Comfort
8.2
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Thailand. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Thailand
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Complete your trip
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Find flights from St. Louis to Thailand, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Thailand flights
Browse other St. Louis and Thailand flight options. Last updated on June 20, 2026.
Popular flight searches
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St. Louis to Thailand flights
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Top 8 airlines flying from St. Louis to Thailand
Discover the top 8 airlines that operate flights from St. Louis 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 June 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$881 | Average$1,248 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$927 | Average$1,235 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$929 | Average$1,106 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$954 | Average$1,274 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$977 | Average$1,229 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,007 | Average$1,271 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,048 | Average$1,456 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,094 | Average$1,244 | FlexibilityNo cancel fee | On-time68% |