$415+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Apr 18 — Apr 251
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 March 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 March 19, 2026.
This oojo deal was found by Cheapflights users on 3/15. 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.
Tue 9/153:24 pm
STL
- BKK
2 stops32h 46m
Philippine Airlines
Wed 9/301:25 pm
BKK
- STL
2 stops37h 01m
Philippine Airlines
Deal found 3/15![Philippine Airlines logo]()
$837
This SmartFares deal was found by Cheapflights users on 3/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:41 am
STL
- BKK
2 stops39h 04m
Multiple Airlines
Sun 10/112:40 am
BKK
- STL
2 stops57h 19m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$948
This Etihad Airways deal was found by Cheapflights users on 3/16. 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 4/17:05 am
STL
- BKK
2 stops35h 25m
Multiple Airlines
Thu 4/309:00 pm
BKK
- STL
2 stops33h 04m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$955
This Etihad Airways deal was found by Cheapflights users on 3/16. 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 4/305:51 am
STL
- BKK
2 stops36h 39m
Multiple Airlines
Thu 5/79:00 pm
BKK
- STL
2 stops28h 22m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$966
This Etihad Airways deal was found by Cheapflights users on 3/17. 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.
Tue 4/145:51 am
STL
- BKK
2 stops36h 24m
Multiple Airlines
Tue 4/219:00 pm
BKK
- STL
2 stops34h 30m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$976
This Etihad Airways deal was found by Cheapflights users on 3/19. 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.
Wed 4/19:15 am
STL
- HKT
2 stops34h 35m
Multiple Airlines
Thu 4/303:20 pm
HKT
- STL
2 stops38h 44m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$982
This Etihad Airways deal was found by Cheapflights users on 3/18. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:00 am
STL
- HKT
2 stops28h 55m
Multiple Airlines
Sun 5/109:20 pm
HKT
- STL
2 stops34h 10m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$985
This Etihad Airways deal was found by Cheapflights users on 3/17. 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.
Fri 3/207:05 am
STL
- HKT
2 stops36h 10m
Multiple Airlines
Thu 4/23:20 pm
HKT
- STL
2 stops40h 10m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$987
This Etihad Airways deal was found by Cheapflights users on 3/15. 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 4/89:10 am
STL
- BKK
2 stops33h 35m
Multiple Airlines
Tue 4/213:55 pm
BKK
- STL
2 stops33h 27m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$993
This Fareboom deal was found by Cheapflights users on 3/17. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:54 am
STL
- BKK
2 stops26h 56m
Etihad Airways
Sun 5/103:55 pm
BKK
- STL
2 stops35h 17m
Etihad Airways
Deal found 3/17![Etihad Airways logo]()
$997
This Etihad Airways deal was found by Cheapflights users on 3/14. 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.
Tue 4/285:51 am
STL
- HKT
2 stops30h 04m
Multiple Airlines
Tue 5/53:20 pm
HKT
- STL
2 stops34h 02m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$999
This Etihad Airways deal was found by Cheapflights users on 3/16. 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.
Sat 10/104:32 pm
STL
- BKK
2 stops26h 13m
Multiple Airlines
Tue 11/102:40 pm
BKK
- STL
2 stops41h 47m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$1,009
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 March 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 March 19, 2026.
This Etihad Airways deal was found by Cheapflights users on 3/16. 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 4/17:05 am
STL
- BKK
2 stops35h 25m
Multiple Airlines
Thu 4/309:00 pm
BKK
- STL
2 stops33h 04m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$955
This oojo deal was found by Cheapflights users on 3/15. 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 5/47:00 am
STL
- CNX
2 stops39h 20m
China Airlines
Tue 6/211:20 am
CNX
- STL
2 stops48h 34m
China Airlines
Deal found 3/15![China Airlines logo]()
$1,112
This United Airlines deal was found by Cheapflights users on 3/15. 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.
Mon 5/186:00 am
STL
- BKK
3 stops39h 35m
United Airlines
Mon 5/253:45 pm
BKK
- STL
3 stops28h 56m
United Airlines
Deal found 3/15![United Airlines logo]()
$1,275
This Qatar Airways deal was found by Cheapflights users on 3/14. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:21 am
STL
- CNX
3 stops43h 24m
Qatar Airways
Thu 5/148:00 pm
CNX
- STL
3 stops38h 19m
Qatar Airways
Deal found 3/14![Qatar Airways logo]()
$1,441
This Etihad Airways deal was found by Cheapflights users on 3/18. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:00 am
STL
- HKT
2 stops28h 55m
Multiple Airlines
Sun 5/109:20 pm
HKT
- STL
2 stops34h 10m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$985
This Etihad Airways deal was found by Cheapflights users on 3/14. 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.
Wed 4/297:00 am
STL
- BKK
2 stops28h 50m
Multiple Airlines
Wed 5/63:55 pm
BKK
- STL
2 stops34h 08m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$1,025
This Etihad Airways deal was found by Cheapflights users on 3/17. 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 5/27:05 am
STL
- HKT
2 stops28h 50m
Multiple Airlines
Sat 5/99:20 pm
HKT
- STL
2 stops34h 10m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$1,045
This United Airlines deal was found by Cheapflights users on 3/18. 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.
Fri 5/12:35 pm
STL
- BKK
3 stops31h 00m
United Airlines
Fri 5/83:45 pm
BKK
- STL
2 stops26h 02m
United Airlines
Deal found 3/18![United Airlines logo]()
$1,288
This Etihad Airways deal was found by Cheapflights users on 3/15. 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.
Mon 4/139:10 am
STL
- BKK
2 stops33h 35m
Multiple Airlines
Mon 4/203:05 pm
BKK
- STL
2 stops37h 36m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$1,116
This United Airlines deal was found by Cheapflights users on 3/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/67:05 pm
STL
- BKK
2 stops50h 30m
United Airlines
Wed 4/293:45 pm
BKK
- STL
3 stops32h 56m
United Airlines
Deal found 3/16![United Airlines logo]()
$1,470
This China Airlines deal was found by Cheapflights users on 3/14. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:35 am
STL
- CNX
2 stops37h 45m
Multiple Airlines
Thu 5/1411:20 am
CNX
- STL
2 stops35h 15m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$1,128
This FlightHub deal was found by Cheapflights users on 3/15. 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.
Wed 5/279:39 am
STL
- HKT
2 stops34h 06m
Qatar Airways
Tue 6/29:20 am
HKT
- STL
2 stops46h 01m
Qatar Airways
Deal found 3/15![Qatar Airways logo]()
$1,767
This United Airlines deal was found by Cheapflights users on 3/15. 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.
Wed 4/16:00 am
STL
- BKK
3 stops63h 35m
United Airlines
Thu 4/303:45 pm
BKK
- STL
2 stops50h 02m
United Airlines
Deal found 3/15![United Airlines logo]()
$1,483
This China Airlines deal was found by Cheapflights users on 3/15. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:00 pm
STL
- CNX
2 stops28h 20m
Multiple Airlines
Mon 8/2411:20 am
CNX
- STL
2 stops42h 20m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$1,143
This United Airlines deal was found by Cheapflights users on 3/14. 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.
Sun 6/141:38 pm
STL
- BKK
3 stops31h 57m
United Airlines
Sun 7/129:35 am
BKK
- STL
2 stops42h 11m
United Airlines
Deal found 3/14![United Airlines logo]()
$1,491
This Qatar Airways deal was found by Cheapflights users on 3/17. 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.
Thu 6/46:35 am
STL
- HKT
2 stops47h 35m
Qatar Airways
Mon 6/158:30 pm
HKT
- STL
2 stops34h 51m
Qatar Airways
Deal found 3/17![Qatar Airways logo]()
$1,824
This Gurufare deal was found by Cheapflights users on 3/14. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/284:46 pm
STL
- CNX
2 stops29h 39m
Multiple Airlines
Tue 5/511:55 am
CNX
- STL
3 stops48h 04m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$1,242
This United Airlines deal was found by Cheapflights users on 3/17. 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.
Tue 6/91:38 pm
STL
- BKK
3 stops31h 57m
United Airlines
Tue 7/77:00 am
BKK
- STL
2 stops26h 26m
United Airlines
Deal found 3/17![United Airlines logo]()
$1,503
This Qatar Airways deal was found by Cheapflights users on 3/17. 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.
Tue 6/29:41 am
STL
- HKT
2 stops44h 29m
Qatar Airways
Mon 6/158:30 pm
HKT
- STL
2 stops34h 51m
Qatar Airways
Deal found 3/17![Qatar Airways logo]()
$1,936
This EVA Air deal was found by Cheapflights users on 3/16. 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.
Wed 8/197:32 pm
STL
- HKT
3 stops31h 53m
Multiple Airlines
Fri 8/217:10 pm
HKT
- STL
3 stops35h 14m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$1,384
This Etihad Airways deal was found by Cheapflights users on 3/19. 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.
Fri 5/296:00 am
STL
- HKT
2 stops29h 55m
Multiple Airlines
Mon 6/89:20 pm
HKT
- STL
2 stops34h 01m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$1,440
This EVA Air deal was found by Cheapflights users on 3/15. 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 4/294:46 pm
STL
- HKT
3 stops34h 39m
Multiple Airlines
Wed 5/611:40 am
HKT
- STL
3 stops30h 07m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$1,443
This Billigflug deal was found by Cheapflights users on 3/17. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:27 pm
STL
- HKT
2 stops34h 23m
Multiple Airlines
Fri 5/87:35 am
HKT
- STL
3 stops27h 24m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$1,750
Last-minute flights from St. Louis to ThailandDiscover last-minute flight deals from St. Louis to Thailand. Data last updated March 19, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Thailand. Data last updated March 19, 2026 and is based on user searches.
This Etihad Airways deal was found by Cheapflights users on 3/17. 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.
Fri 3/207:05 am
STL
- HKT
2 stops36h 10m
Multiple Airlines
Thu 4/23:20 pm
HKT
- STL
2 stops40h 10m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$987
This Etihad Airways deal was found by Cheapflights users on 3/16. 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 4/17:05 am
STL
- BKK
2 stops35h 25m
Multiple Airlines
Thu 4/309:00 pm
BKK
- STL
2 stops33h 04m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$955
This Etihad Airways deal was found by Cheapflights users on 3/19. 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.
Wed 4/19:15 am
STL
- HKT
2 stops34h 35m
Multiple Airlines
Thu 4/303:20 pm
HKT
- STL
2 stops38h 44m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$982
This Etihad Airways deal was found by Cheapflights users on 3/15. 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 4/89:10 am
STL
- BKK
2 stops33h 35m
Multiple Airlines
Tue 4/213:55 pm
BKK
- STL
2 stops33h 27m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$993
This BusinessClass deal was found by Cheapflights users on 3/18. 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.
Mon 4/1312:27 pm
STL
- BKK
2 stops36h 53m
Qatar Airways
Sun 4/191:45 am
BKK
- STL
2 stops34h 01m
Qatar Airways
Deal found 3/18![Qatar Airways logo]()
$1,073
This Etihad Airways deal was found by Cheapflights users on 3/17. 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 4/137:00 am
STL
- BKK
2 stops35h 45m
Multiple Airlines
Mon 4/209:00 pm
BKK
- STL
2 stops29h 03m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$1,116
This Etihad Airways deal was found by Cheapflights users on 3/17. 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.
Tue 4/145:51 am
STL
- BKK
2 stops36h 24m
Multiple Airlines
Tue 4/219:00 pm
BKK
- STL
2 stops34h 30m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$976
This Etihad Airways deal was found by Cheapflights users on 3/14. 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.
Tue 4/285:51 am
STL
- HKT
2 stops30h 04m
Multiple Airlines
Tue 5/53:20 pm
HKT
- STL
2 stops34h 02m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$999
This Etihad Airways deal was found by Cheapflights users on 3/14. 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.
Wed 4/297:00 am
STL
- BKK
2 stops28h 50m
Multiple Airlines
Wed 5/63:55 pm
BKK
- STL
2 stops34h 08m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$1,025
This Etihad Airways deal was found by Cheapflights users on 3/15. 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 4/297:00 am
STL
- HKT
2 stops28h 55m
Multiple Airlines
Wed 5/63:20 pm
HKT
- STL
2 stops34h 43m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$1,055
This Etihad Airways deal was found by Cheapflights users on 3/16. 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 4/305:51 am
STL
- BKK
2 stops36h 39m
Multiple Airlines
Thu 5/79:00 pm
BKK
- STL
2 stops28h 22m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$966
This Trip.com deal was found by Cheapflights users on 3/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:00 am
STL
- CNX
2 stops39h 25m
Multiple Airlines
Thu 5/711:35 am
CNX
- STL
2 stops48h 24m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$1,097
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 March 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 March 19, 2026.
This oojo deal was found by Cheapflights users on 3/18. 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.
Tue 8/182:53 pm
STL
- BKK
2 stops30h 02m
Philippine Airlines
Deal found 3/18![Philippine Airlines logo]()
$415
This Expedia deal was found by Cheapflights users on 3/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:00 am
STL
- BKK
2 stops40h 30m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$493
This KAYAK deal was found by Cheapflights users on 3/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:27 pm
STL
- BKK
2 stops33h 33m
Cathay Pacific
Deal found 3/17![Cathay Pacific logo]()
$541
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/138:19 pm
STL
- BKK
3 stops49h 26m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$543
This oojo deal was found by Cheapflights users on 3/17. 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 8/121:37 pm
STL
- BKK
2 stops35h 18m
Qatar Airways
Deal found 3/17![Qatar Airways logo]()
$544
This Kiwi.com deal was found by Cheapflights users on 3/18. 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.
Tue 8/186:40 pm
STL
- BKK
3 stops50h 15m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$551
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Fri 4/178:06 pm
STL
- BKK
3 stops50h 34m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$557
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/199:55 pm
STL
- BKK
3 stops48h 45m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$572
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/214:59 pm
STL
- BKK
3 stops53h 41m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$579
This KAYAK deal was found by Cheapflights users on 3/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/213:50 pm
STL
- CNX
2 stops30h 35m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$579
This IEagle deal was found by Cheapflights users on 3/17. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:27 pm
STL
- HKT
2 stops41h 43m
Qatar Airways
Deal found 3/17![Qatar Airways logo]()
$587
This China Airlines deal was found by Cheapflights users on 3/17. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:35 pm
STL
- CNX
2 stops26h 45m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$599
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 March 19, 2026.
Round-trip from | $837 (oojo) |
|---|---|
One-way from | $415 (oojo) |
Popular in | December |
Cheapest in | February |
Average price | $1,270 |
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 March 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. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 4/1
7:05 am-6:30 am
2 stops35h 25m
Bangkok Suvarnabhumi
Thu 4/30
9:00 pm-6:04 pm
2 stops33h 04m
$955
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Sun 5/3
7:00 am-11:55 pm
2 stops28h 55m
Phuket City
Sun 5/10
9:20 pm-7:30 pm
2 stops34h 10m
$985
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 4/29
7:00 am-11:50 pm
2 stops28h 50m
Bangkok Suvarnabhumi
Wed 5/6
3:55 pm-2:03 pm
2 stops34h 08m
$1,025
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Sat 5/2
7:05 am-11:55 pm
2 stops28h 50m
Phuket City
Sat 5/9
9:20 pm-7:30 pm
2 stops34h 10m
$1,045
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Mon 5/4
7:00 am-10:20 am
2 stops39h 20m
Chiang Mai
Tue 6/2
11:20 am-11:54 pm
2 stops48h 34m
$1,112
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 4/13
9:10 am-6:45 am
2 stops33h 35m
Bangkok Suvarnabhumi
Mon 4/20
3:05 pm-4:41 pm
2 stops37h 36m
$1,116
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Tue 5/5
8:35 am-10:20 am
2 stops37h 45m
Chiang Mai
Thu 5/14
11:20 am-10:35 am
2 stops35h 15m
$1,128
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Fri 8/21
6:00 pm-10:20 am
2 stops28h 20m
Chiang Mai
Mon 8/24
11:20 am-5:40 pm
2 stops42h 20m
$1,143
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Tue 4/28
4:46 pm-10:25 am
2 stops29h 39m
Chiang Mai
Tue 5/5
11:55 am-11:59 pm
3 stops48h 04m
$1,242
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 5/18
6:00 am-9:35 am
3 stops39h 35m
Bangkok Suvarnabhumi
Mon 5/25
3:45 pm-8:41 am
3 stops28h 56m
$1,275
Showing 1-10 of 43 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-CNX
STL-HKT
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-CNX
STL-HKT
What is the cheapest month to book a flight from St. Louis to Thailand?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Thailand (average of $897). Flying from St. Louis to Thailand in June is currently the most expensive (average of $1,225). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from STL to TH?
Find hourly flight availability from St. Louis to Thailand. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 19, 2026.
When flying from St. Louis to Thailand, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 62% versus a flight at noon.
What is the cheapest day to fly from St. Louis to Thailand?
Use this chart to determine the cheapest time to fly round-trip from St. Louis to Thailand. Price data was last updated on March 30, 2025.
Travelers seeking maximum savings on their St. Louis to Thailand flight should consider departing on Monday at noon when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Thailand
Get insights into the airlines that provide service to Thailand. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Thailand. Reviews last updated March 19, 2026.
See what other customers who have flown with ANA,Japan Airlines, andDelta 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.
Entertainment
8.0
Overall
8.4
Crew
8.7
Food
7.8
Comfort
8.2
Boarding
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
8.0
Overall
8.4
Crew
8.7
Food
7.8
Comfort
8.2
Boarding
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
8.0
Overall
8.4
Crew
8.7
Food
7.8
Comfort
8.2
Boarding
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
8.0
Overall
8.4
Crew
8.7
Food
7.8
Comfort
8.2
Boarding
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
8.0
Overall
8.4
Crew
8.7
Food
7.8
Comfort
8.2
Boarding
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
8.0
Overall
8.4
Crew
8.7
Food
7.8
Comfort
8.2
Boarding
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
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
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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 March 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$927 | Average$1,259 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$929 | Average$1,106 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$954 | Average$1,278 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$978 | Average$1,275 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$984 | Average$1,250 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,007 | Average$1,246 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,017 | Average$1,372 | FlexibilityNo cancel fee | On-time68% |