$555+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
May 19 — May 261
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Thailand with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from 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 April 19, 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 April 19, 2026.
This Etihad Airways deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/26:00 am
STL
- BKK
2 stops36h 45m
Multiple Airlines
Sat 5/169:00 pm
BKK
- STL
2 stops31h 41m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$997
This oojo deal was found by Cheapflights users on 4/16. 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.
Sun 11/13:24 pm
STL
- BKK
2 stops31h 41m
Multiple Airlines
Sun 11/810:50 pm
BKK
- STL
2 stops52h 36m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$998
This oojo deal was found by Cheapflights users on 4/16. 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.
Sun 10/117:00 am
STL
- BKK
2 stops41h 10m
Multiple Airlines
Sat 10/2411:40 pm
BKK
- STL
2 stops60h 19m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,008
This Etihad Airways deal was found by Cheapflights users on 4/16. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:34 am
STL
- BKK
2 stops27h 16m
Multiple Airlines
Fri 9/189:00 pm
BKK
- STL
2 stops35h 03m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,009
This Etihad Airways deal was found by Cheapflights users on 4/16. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:23 am
STL
- BKK
2 stops34h 52m
Multiple Airlines
Wed 11/188:50 pm
BKK
- STL
2 stops31h 03m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,015
This oojo deal was found by Cheapflights users on 4/19. 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.
Thu 4/305:20 am
STL
- BKK
2 stops37h 30m
Qatar Airways
Thu 5/212:30 am
BKK
- STL
2 stops30h 00m
Qatar Airways
Deal found 4/19![Qatar Airways logo]()
$1,127
This oojo deal was found by Cheapflights users on 4/16. 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.
Thu 11/53:24 pm
STL
- BKK
2 stops31h 41m
Multiple Airlines
Sat 11/1410:50 pm
BKK
- STL
2 stops52h 36m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,156
This oojo deal was found by Cheapflights users on 4/18. 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 5/24:30 pm
STL
- BKK
2 stops26h 20m
Qatar Airways
Sat 5/167:40 pm
BKK
- STL
2 stops38h 39m
Qatar Airways
Deal found 4/18![Qatar Airways logo]()
$1,170
This Etihad Airways deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 11/147:05 am
STL
- BKK
2 stops34h 30m
Multiple Airlines
Sat 11/282:40 pm
BKK
- STL
2 stops35h 37m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,209
This oojo deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 10/47:44 am
STL
- HKT
2 stops36h 01m
Qatar Airways
Sat 10/3112:50 am
HKT
- STL
2 stops36h 09m
Qatar Airways
Deal found 4/14![Qatar Airways logo]()
$1,227
This FlightHub deal was found by Cheapflights users on 4/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:16 am
STL
- BKK
2 stops38h 39m
Qatar Airways
Sun 9/138:00 pm
BKK
- STL
2 stops36h 03m
Qatar Airways
Deal found 4/15![Qatar Airways logo]()
$1,247
This SmartFares deal was found by Cheapflights users on 4/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:00 am
STL
- HKT
2 stops44h 05m
Multiple Airlines
Wed 5/208:45 pm
HKT
- STL
2 stops39h 09m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,304
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 April 19, 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 April 19, 2026.
This Qatar Airways deal was found by Cheapflights users on 4/15. 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.
Tue 5/54:30 pm
STL
- HKT
2 stops33h 35m
Qatar Airways
Sat 5/98:45 pm
HKT
- STL
2 stops37h 34m
Qatar Airways
Deal found 4/15![Qatar Airways logo]()
$1,395
This EVA Air deal was found by Cheapflights users on 4/15. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:34 pm
STL
- CNX
2 stops26h 51m
Multiple Airlines
Mon 8/2411:35 am
CNX
- STL
2 stops36h 50m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,496
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/94:15 pm
STL
- BKK
3 stops29h 20m
United Airlines
Fri 5/223:45 pm
BKK
- STL
3 stops30h 22m
United Airlines
Deal found 4/14![United Airlines logo]()
$1,821
This Qatar Airways deal was found by Cheapflights users on 4/16. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:27 pm
STL
- CNX
3 stops37h 18m
Qatar Airways
Thu 5/1411:55 am
CNX
- STL
3 stops46h 24m
Qatar Airways
Deal found 4/16![Qatar Airways logo]()
$1,419
This EVA Air deal was found by Cheapflights users on 4/16. 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.
Mon 5/44:46 pm
STL
- CNX
2 stops29h 39m
Multiple Airlines
Tue 6/211:35 am
CNX
- STL
3 stops39h 15m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,503
This Qatar Airways deal was found by Cheapflights users on 4/15. 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.
Fri 8/218:35 am
STL
- CNX
3 stops36h 45m
Qatar Airways
Mon 8/248:00 pm
CNX
- STL
3 stops39h 51m
Qatar Airways
Deal found 4/15![Qatar Airways logo]()
$1,500
This Etihad Airways deal was found by Cheapflights users on 4/17. 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.
Mon 6/17:00 am
STL
- BKK
2 stops35h 45m
Multiple Airlines
Mon 6/88:40 pm
BKK
- STL
2 stops34h 41m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,546
This United Airlines deal was found by Cheapflights users on 4/18. 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 5/610:25 am
STL
- BKK
3 stops35h 10m
United Airlines
Sun 5/103:45 pm
BKK
- STL
2 stops26h 02m
United Airlines
Deal found 4/18![United Airlines logo]()
$1,839
This Etihad Airways deal was found by Cheapflights users on 4/15. 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.
Wed 5/279:39 am
STL
- HKT
2 stops33h 56m
Multiple Airlines
Tue 6/29:20 pm
HKT
- STL
2 stops34h 01m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,730
This Etihad Airways deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 6/67:00 am
STL
- HKT
2 stops36h 50m
Multiple Airlines
Mon 7/69:20 pm
HKT
- STL
2 stops34h 00m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,736
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/158:46 am
STL
- BKK
3 stops36h 49m
United Airlines
Mon 5/257:00 am
BKK
- STL
3 stops44h 46m
United Airlines
Deal found 4/14![United Airlines logo]()
$2,117
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/161:38 pm
STL
- BKK
3 stops31h 57m
United Airlines
Wed 7/227:00 am
BKK
- STL
2 stops26h 26m
United Airlines
Deal found 4/14![United Airlines logo]()
$2,160
This EVA Air deal was found by Cheapflights users on 4/15. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:41 pm
STL
- HKT
3 stops30h 24m
Multiple Airlines
Wed 5/2012:55 pm
HKT
- STL
3 stops28h 52m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$2,036
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:13 pm
STL
- BKK
3 stops32h 22m
United Airlines
Wed 6/33:45 pm
BKK
- STL
3 stops37h 57m
United Airlines
Deal found 4/14![United Airlines logo]()
$2,331
This United Airlines deal was found by Cheapflights users on 4/15. 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.
Sun 5/317:23 pm
STL
- BKK
2 stops26h 12m
United Airlines
Sun 6/79:35 am
BKK
- STL
3 stops66h 11m
United Airlines
Deal found 4/15![United Airlines logo]()
$2,343
This United Airlines deal was found by Cheapflights users on 4/19. 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.
Wed 5/275:29 pm
STL
- BKK
3 stops28h 06m
United Airlines
Thu 6/253:45 pm
BKK
- STL
3 stops36h 48m
United Airlines
Deal found 4/19![United Airlines logo]()
$2,343
This United Airlines deal was found by Cheapflights users on 4/15. 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.
Thu 5/284:48 pm
STL
- BKK
3 stops28h 47m
United Airlines
Thu 6/253:45 pm
BKK
- STL
3 stops36h 48m
United Airlines
Deal found 4/15![United Airlines logo]()
$2,343
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/306:00 am
STL
- BKK
2 stops29h 55m
United Airlines
Sat 6/63:45 pm
BKK
- STL
2 stops38h 32m
United Airlines
Deal found 4/14![United Airlines logo]()
$2,378
Last-minute flights from St. Louis to ThailandDiscover last-minute flight deals from St. Louis to Thailand. Data last updated April 19, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Thailand. Data last updated April 19, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 4/16. 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.
Mon 4/204:30 pm
STL
- BKK
2 stops26h 20m
Qatar Airways
Wed 4/291:00 am
BKK
- STL
2 stops33h 24m
Qatar Airways
Deal found 4/16![Qatar Airways logo]()
$1,358
This Priceline deal was found by Cheapflights users on 4/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/223:38 pm
STL
- BKK
2 stops34h 37m
Qatar Airways
Fri 4/247:45 pm
BKK
- STL
2 stops40h 14m
Qatar Airways
Deal found 4/18![Qatar Airways logo]()
$1,302
This oojo deal was found by Cheapflights users on 4/19. 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.
Thu 4/305:20 am
STL
- BKK
2 stops37h 30m
Qatar Airways
Thu 5/212:30 am
BKK
- STL
2 stops30h 00m
Qatar Airways
Deal found 4/19![Qatar Airways logo]()
$1,127
This Etihad Airways deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/26:00 am
STL
- BKK
2 stops36h 45m
Multiple Airlines
Sat 5/169:00 pm
BKK
- STL
2 stops31h 41m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$997
This oojo deal was found by Cheapflights users on 4/18. 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 5/24:30 pm
STL
- BKK
2 stops26h 20m
Qatar Airways
Sat 5/167:40 pm
BKK
- STL
2 stops38h 39m
Qatar Airways
Deal found 4/18![Qatar Airways logo]()
$1,170
This Qatar Airways deal was found by Cheapflights users on 4/18. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:30 pm
STL
- CNX
3 stops33h 15m
Qatar Airways
Tue 6/28:00 pm
CNX
- STL
3 stops36h 30m
Qatar Airways
Deal found 4/18![Qatar Airways logo]()
$1,388
This Justfly.com deal was found by Cheapflights users on 4/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/54:46 pm
STL
- CNX
2 stops35h 34m
Multiple Airlines
Thu 5/145:20 pm
CNX
- STL
2 stops61h 25m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,348
This Qatar Airways deal was found by Cheapflights users on 4/15. 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.
Tue 5/54:30 pm
STL
- HKT
2 stops33h 35m
Qatar Airways
Sat 5/98:45 pm
HKT
- STL
2 stops37h 34m
Qatar Airways
Deal found 4/15![Qatar Airways logo]()
$1,395
This Qatar Airways deal was found by Cheapflights users on 4/15. 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.
Wed 5/62:33 pm
STL
- BKK
2 stops35h 12m
Qatar Airways
Sat 5/92:30 am
BKK
- STL
2 stops31h 49m
Qatar Airways
Deal found 4/15![Qatar Airways logo]()
$1,272
This Etihad Airways deal was found by Cheapflights users on 4/17. 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 5/95:51 am
STL
- BKK
2 stops36h 54m
Multiple Airlines
Fri 5/228:40 pm
BKK
- STL
2 stops34h 52m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,297
This FlightHub deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/94:30 pm
STL
- BKK
2 stops26h 20m
Qatar Airways
Thu 5/212:30 am
BKK
- STL
2 stops30h 00m
Qatar Airways
Deal found 4/14![Qatar Airways logo]()
$1,323
This SmartFares deal was found by Cheapflights users on 4/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:00 am
STL
- HKT
2 stops44h 05m
Multiple Airlines
Wed 5/208:45 pm
HKT
- STL
2 stops39h 09m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,304
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 April 19, 2026.
Search for one-way flight options from St. Louis to Thailand. Find affordable one-way fares based on user searches. Data last updated April 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:17 pm
STL
- BKK
3 stops51h 53m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$555
This FlightHub deal was found by Cheapflights users on 4/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:30 pm
STL
- BKK
2 stops26h 20m
Qatar Airways
Deal found 4/16![Qatar Airways logo]()
$576
This IEagle deal was found by Cheapflights users on 4/18. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:27 pm
STL
- HKT
2 stops37h 38m
Qatar Airways
Deal found 4/18![Qatar Airways logo]()
$589
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/34:30 pm
STL
- BKK
2 stops26h 20m
Qatar Airways
Deal found 4/16![Qatar Airways logo]()
$591
This IEagle deal was found by Cheapflights users on 4/19. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:11 pm
STL
- BKK
2 stops31h 44m
Qatar Airways
Deal found 4/19![Qatar Airways logo]()
$602
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/49:55 pm
STL
- BKK
3 stops47h 00m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$603
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Sun 5/39:55 pm
STL
- BKK
3 stops47h 00m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$609
This FlightHub deal was found by Cheapflights users on 4/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/54:30 pm
STL
- BKK
2 stops33h 15m
Qatar Airways
Deal found 4/15![Qatar Airways logo]()
$615
This FlightHub deal was found by Cheapflights users on 4/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/62:33 pm
STL
- BKK
2 stops28h 17m
Qatar Airways
Deal found 4/16![Qatar Airways logo]()
$626
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:36 pm
STL
- BKK
3 stops41h 54m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$629
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 4/239:55 pm
STL
- HKT
3 stops56h 05m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$780
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 April 19, 2026.
Round-trip from | $1,008 (oojo) |
|---|---|
One-way from | $555 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $1,196 |
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 April 19, 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. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Tue 5/5
4:30 pm-2:05 pm
2 stops33h 35m
Phuket City
Sat 5/9
8:45 pm-10:19 pm
2 stops37h 34m
$1,395
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Tue 5/5
12:27 pm-1:45 pm
3 stops37h 18m
Chiang Mai
Thu 5/14
11:55 am-10:19 pm
3 stops46h 24m
$1,419
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Fri 8/21
7:34 pm-10:25 am
2 stops26h 51m
Chiang Mai
Mon 8/24
11:35 am-12:25 pm
2 stops36h 50m
$1,496
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Fri 8/21
8:35 am-9:20 am
3 stops36h 45m
Chiang Mai
Mon 8/24
8:00 pm-11:51 pm
3 stops39h 51m
$1,500
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Mon 5/4
4:46 pm-10:25 am
2 stops29h 39m
Chiang Mai
Tue 6/2
11:35 am-2:50 pm
3 stops39h 15m
$1,503
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 6/1
7:00 am-6:45 am
2 stops35h 45m
Bangkok Suvarnabhumi
Mon 6/8
8:40 pm-7:21 pm
2 stops34h 41m
$1,546
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Wed 5/27
9:39 am-7:35 am
2 stops33h 56m
Phuket City
Tue 6/2
9:20 pm-7:21 pm
2 stops34h 01m
$1,730
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Sat 6/6
7:00 am-7:50 am
2 stops36h 50m
Phuket City
Mon 7/6
9:20 pm-7:20 pm
2 stops34h 00m
$1,736
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sat 5/9
4:15 pm-9:35 am
3 stops29h 20m
Bangkok Suvarnabhumi
Fri 5/22
3:45 pm-10:07 am
3 stops30h 22m
$1,821
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 5/6
10:25 am-9:35 am
3 stops35h 10m
Bangkok Suvarnabhumi
Sun 5/10
3:45 pm-5:47 am
2 stops26h 02m
$1,839
Showing 1-10 of 28 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.
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 April 19, 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
Food
7.7
Entertainment
7.8
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Boarding
8.4
Overall
8.3
Food
7.7
Entertainment
7.8
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Boarding
8.4
Overall
8.3
Food
7.7
Entertainment
7.8
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Boarding
8.4
Overall
8.3
Food
7.7
Entertainment
7.8
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Boarding
8.4
Overall
8.3
Food
7.7
Entertainment
7.8
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Boarding
8.4
Overall
8.3
Food
7.7
Entertainment
7.8
Crew
8.7
Comfort
8.2
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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St. Louis and Thailand flights
Browse other St. Louis and Thailand flight options. Last updated on April 19, 2026.
Popular flight searches
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St. Louis to Thailand flights
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Consider these flights traveling to Thailand regions.
Top 7 airlines flying from St. Louis to Thailand
Discover the top 7 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 April 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$927 | Average$1,232 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$929 | Average$1,087 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$954 | Average$1,278 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$978 | Average$1,270 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$983 | Average$1,246 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,007 | Average$1,260 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,094 | Average$1,372 | FlexibilityNo cancel fee | On-time68% |