$624+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Jun 18 — Jun 251
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from St. Louis to Thailand with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Thailand
Cheapest
Best
Last-minute
One-way
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 May 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 May 19, 2026.
This oojo deal was found by Cheapflights users on 5/17. 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 8/209:21 am
STL
- BKK
2 stops26h 29m
Etihad Airways
Wed 11/188:30 am
BKK
- STL
2 stops46h 24m
Etihad Airways
Deal found 5/17![Etihad Airways logo]()
$1,031
This oojo deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:06 am
STL
- BKK
2 stops36h 39m
Etihad Airways
Mon 11/168:30 am
BKK
- STL
2 stops46h 24m
Etihad Airways
Deal found 5/18![Etihad Airways logo]()
$1,037
This Etihad Airways deal was found by Cheapflights users on 5/14. 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 10/174:32 pm
STL
- BKK
2 stops25h 43m
Multiple Airlines
Sun 10/258:50 pm
BKK
- STL
2 stops28h 13m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,039
This Etihad Airways deal was found by Cheapflights users on 5/15. 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 10/17:44 am
STL
- BKK
2 stops35h 01m
Multiple Airlines
Mon 11/168:50 pm
BKK
- STL
2 stops35h 39m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,044
This oojo deal was found by Cheapflights users on 5/18. 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.
Fri 10/29:32 am
STL
- HKT
2 stops26h 08m
Etihad Airways
Sat 10/109:25 am
HKT
- STL
2 stops42h 05m
Etihad Airways
Deal found 5/18![Etihad Airways logo]()
$1,062
This oojo deal was found by Cheapflights users on 5/17. 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 8/139:21 am
STL
- BKK
2 stops26h 29m
Etihad Airways
Sat 8/229:15 am
BKK
- STL
2 stops39h 39m
Etihad Airways
Deal found 5/17![Etihad Airways logo]()
$1,092
This oojo deal was found by Cheapflights users on 5/18. 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.
Sun 10/116:02 am
STL
- BKK
2 stops36h 43m
Etihad Airways
Sat 10/249:45 am
BKK
- STL
2 stops41h 45m
Etihad Airways
Deal found 5/18![Etihad Airways logo]()
$1,098
This Etihad Airways deal was found by Cheapflights users on 5/18. 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.
Sat 7/115:19 pm
STL
- BKK
2 stops30h 31m
Multiple Airlines
Sun 7/199:00 pm
BKK
- STL
2 stops34h 21m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,099
This oojo deal was found by Cheapflights users on 5/15. 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.
Sat 7/118:06 pm
STL
- BKK
2 stops46h 39m
Etihad Airways
Fri 7/173:15 am
BKK
- STL
2 stops41h 55m
Etihad Airways
Deal found 5/15![Etihad Airways logo]()
$1,106
This oojo deal was found by Cheapflights users on 5/19. 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 8/87:34 am
STL
- BKK
2 stops28h 16m
Etihad Airways
Wed 8/199:15 am
BKK
- STL
2 stops39h 39m
Etihad Airways
Deal found 5/19![Etihad Airways logo]()
$1,174
This Etihad Airways deal was found by Cheapflights users on 5/15. 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.
Sun 11/18:40 am
STL
- BKK
2 stops32h 55m
Multiple Airlines
Sun 11/82:40 pm
BKK
- STL
2 stops37h 13m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,179
This oojo deal was found by Cheapflights users on 5/15. 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 8/1210:22 am
STL
- BKK
2 stops25h 28m
Etihad Airways
Fri 8/219:15 am
BKK
- STL
2 stops39h 40m
Etihad Airways
Deal found 5/15![Etihad Airways logo]()
$1,186
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 May 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 May 19, 2026.
This China Airlines deal was found by Cheapflights users on 5/16. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:45 pm
STL
- BKK
2 stops25h 00m
Multiple Airlines
Fri 8/2110:50 am
BKK
- STL
2 stops25h 00m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,333
This Ovago deal was found by Cheapflights users on 5/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/103:35 pm
STL
- HKT
2 stops37h 45m
Cathay Pacific
Sat 8/1511:50 am
HKT
- STL
2 stops46h 35m
Cathay Pacific
Deal found 5/17![Cathay Pacific logo]()
$1,551
This Qatar Airways deal was found by Cheapflights users on 5/15. 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 6/141:42 pm
STL
- BKK
2 stops35h 13m
Qatar Airways
Sat 6/203:00 am
BKK
- STL
2 stops33h 16m
Qatar Airways
Deal found 5/15![Qatar Airways logo]()
$1,673
This Korean Air deal was found by Cheapflights users on 5/14. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:00 am
STL
- CNX
2 stops27h 55m
Korean Air
Tue 11/1012:15 am
CNX
- STL
2 stops25h 41m
Korean Air
Deal found 5/14![Korean Air logo]()
$1,679
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Sat 8/84:45 pm
STL
- BKK
3 stops28h 50m
United Airlines
Wed 8/197:00 am
BKK
- STL
2 stops39h 10m
United Airlines
Deal found 5/17![United Airlines logo]()
$1,694
This EVA Air deal was found by Cheapflights users on 5/19. 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 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 5/19![Multiple Airlines logo]()
$1,496
This BusinessClass deal was found by Cheapflights users on 5/17. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/272:15 pm
STL
- HKT
2 stops32h 35m
Cathay Pacific
Tue 6/211:50 am
HKT
- STL
2 stops48h 06m
Cathay Pacific
Deal found 5/17![Cathay Pacific logo]()
$1,680
This United Airlines deal was found by Cheapflights users on 5/19. 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 8/1212:59 pm
STL
- BKK
3 stops32h 36m
United Airlines
Fri 8/217:00 am
BKK
- STL
2 stops28h 38m
United Airlines
Deal found 5/19![United Airlines logo]()
$1,751
This Qatar Airways deal was found by Cheapflights users on 5/19. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/219:31 am
STL
- CNX
3 stops37h 44m
Qatar Airways
Mon 8/248:00 pm
CNX
- STL
3 stops35h 25m
Qatar Airways
Deal found 5/19![Qatar Airways logo]()
$1,804
This China Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:25 am
STL
- BKK
3 stops39h 20m
Multiple Airlines
Sat 8/225:30 pm
BKK
- STL
2 stops30h 50m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,648
This Ovago deal was found by Cheapflights users on 5/19. 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.
Fri 6/195:03 pm
STL
- HKT
2 stops53h 47m
Cathay Pacific
Thu 6/2511:50 am
HKT
- STL
2 stops44h 17m
Cathay Pacific
Deal found 5/19![Cathay Pacific logo]()
$1,811
This China Airlines deal was found by Cheapflights users on 5/17. 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.
Mon 7/277:56 pm
STL
- CNX
2 stops26h 24m
Multiple Airlines
Sun 8/911:20 am
CNX
- STL
2 stops34h 35m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$1,715
This oojo deal was found by Cheapflights users on 5/16. 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 6/157:20 pm
STL
- HKT
2 stops35h 30m
Qatar Airways
Sun 6/218:30 pm
HKT
- STL
2 stops35h 06m
Qatar Airways
Deal found 5/16![Qatar Airways logo]()
$1,891
This oojo deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/291:45 pm
STL
- HKT
2 stops36h 30m
Qatar Airways
Mon 6/89:00 pm
HKT
- STL
2 stops36h 37m
Qatar Airways
Deal found 5/19![Qatar Airways logo]()
$1,933
This BusinessClass deal was found by Cheapflights users on 5/16. 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 5/272:15 pm
STL
- HKT
2 stops39h 05m
Multiple Airlines
Tue 6/27:35 am
HKT
- STL
3 stops26h 07m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,836
This BusinessClass deal was found by Cheapflights users on 5/19. 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.
Fri 6/199:09 am
STL
- HKT
2 stops37h 41m
Multiple Airlines
Thu 6/257:35 am
HKT
- STL
3 stops26h 02m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$2,167
This Mytrip deal was found by Cheapflights users on 5/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/151:05 pm
STL
- HKT
3 stops33h 45m
Multiple Airlines
Sun 6/2110:15 pm
HKT
- STL
3 stops34h 10m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$2,270
Last-minute flights from St. Louis to ThailandDiscover last-minute flight deals from St. Louis to Thailand. Data last updated May 19, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Thailand. Data last updated May 19, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 5/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:21 pm
STL
- BKK
2 stops48h 09m
Finnair
Mon 5/257:05 am
BKK
- STL
2 stops48h 31m
Finnair
Deal found 5/16![Finnair logo]()
$1,418
This SmartFares deal was found by Cheapflights users on 5/15. 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.
Tue 5/197:41 pm
STL
- BKK
2 stops26h 44m
Multiple Airlines
Thu 5/214:45 pm
BKK
- STL
2 stops38h 00m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,474
This FlightHub deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:00 pm
STL
- BKK
2 stops48h 30m
Finnair
Wed 6/247:05 am
BKK
- STL
2 stops47h 25m
Finnair
Deal found 5/18![Finnair logo]()
$1,500
This BusinessClass deal was found by Cheapflights users on 5/17. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/272:15 pm
STL
- HKT
2 stops32h 35m
Cathay Pacific
Tue 6/211:50 am
HKT
- STL
2 stops48h 06m
Cathay Pacific
Deal found 5/17![Cathay Pacific logo]()
$1,680
This BusinessClass deal was found by Cheapflights users on 5/19. 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.
Wed 5/272:15 pm
STL
- HKT
2 stops39h 05m
Multiple Airlines
Tue 6/27:35 am
HKT
- STL
3 stops26h 07m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,836
This Justfly.com deal was found by Cheapflights users on 5/18. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:00 pm
STL
- BKK
2 stops48h 30m
Finnair
Wed 6/247:05 am
BKK
- STL
2 stops47h 25m
Finnair
Deal found 5/18![Finnair logo]()
$1,422
This BusinessClass deal was found by Cheapflights users on 5/16. 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.
Mon 6/17:18 pm
STL
- BKK
2 stops46h 12m
Finnair
Mon 6/87:05 am
BKK
- STL
2 stops52h 54m
Finnair
Deal found 5/16![Finnair logo]()
$1,469
This KAYAK deal was found by Cheapflights users on 5/19. 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.
Tue 6/97:04 am
STL
- BKK
2 stops34h 26m
Finnair
Tue 7/77:05 am
BKK
- STL
2 stops29h 11m
Finnair
Deal found 5/19![Finnair logo]()
$1,430
This Air Canada deal was found by Cheapflights users on 5/16. 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.
Tue 6/92:15 pm
STL
- BKK
2 stops43h 40m
Air Canada
Mon 6/152:35 am
BKK
- STL
2 stops53h 50m
Air Canada
Deal found 5/16![Air Canada logo]()
$1,434
This Air Canada deal was found by Cheapflights users on 5/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/92:15 pm
STL
- BKK
2 stops43h 40m
Air Canada
Tue 7/711:30 pm
BKK
- STL
2 stops55h 12m
Air Canada
Deal found 5/15![Air Canada logo]()
$1,446
This Priceline deal was found by Cheapflights users on 5/18. 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.
Tue 6/165:03 pm
STL
- BKK
2 stops48h 27m
Finnair
Tue 6/237:05 am
BKK
- STL
2 stops29h 11m
Finnair
Deal found 5/18![Finnair logo]()
$1,463
This Ovago deal was found by Cheapflights users on 5/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:18 pm
STL
- HKT
2 stops29h 32m
Cathay Pacific
Sun 7/511:50 am
HKT
- STL
2 stops43h 28m
Cathay Pacific
Deal found 5/14![Cathay Pacific logo]()
$1,718
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 May 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 May 19, 2026.
This oojo deal was found by Cheapflights users on 5/19. 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 8/121:25 pm
STL
- BKK
2 stops29h 50m
Qatar Airways
Deal found 5/19![Qatar Airways logo]()
$624
This Trip.com deal was found by Cheapflights users on 5/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/152:52 pm
STL
- BKK
3 stops30h 03m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$626
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 7/286:33 pm
STL
- BKK
3 stops39h 07m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$648
This oojo deal was found by Cheapflights users on 5/17. 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.
Tue 7/289:24 am
STL
- BKK
2 stops26h 26m
Etihad Airways
Deal found 5/17![Etihad Airways logo]()
$651
This FlightHub deal was found by Cheapflights users on 5/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:00 am
STL
- BKK
2 stops42h 55m
Qatar Airways
Deal found 5/17![Qatar Airways logo]()
$661
This Air Canada deal was found by Cheapflights users on 5/19. 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 7/2212:10 pm
STL
- BKK
2 stops45h 45m
Air Canada
Deal found 5/19![Air Canada logo]()
$707
This Mytrip deal was found by Cheapflights users on 5/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/32:15 pm
STL
- BKK
3 stops33h 55m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$749
This oojo deal was found by Cheapflights users on 5/18. 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 7/19:09 am
STL
- BKK
2 stops33h 36m
Etihad Airways
Deal found 5/18![Etihad Airways logo]()
$764
This United Airlines deal was found by Cheapflights users on 5/19. 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 7/224:48 pm
STL
- BKK
3 stops28h 47m
United Airlines
Deal found 5/19![United Airlines logo]()
$863
This Justfly.com deal was found by Cheapflights users on 5/17. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/292:32 pm
STL
- BKK
2 stops27h 48m
Qatar Airways
Deal found 5/17![Qatar Airways logo]()
$952
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 May 19, 2026.
Round-trip from | $1,031 (oojo) |
|---|---|
One-way from | $624 (oojo) |
Popular in | December |
Cheapest in | February |
Average price | $1,438 |
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 May 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
Quickest round-trip
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 8/12
8:45 pm-9:45 am
2 stops25h 00m
Bangkok Suvarnabhumi
Fri 8/21
10:50 am-11:50 pm
2 stops25h 00m
$1,333
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
$1,496
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Mon 8/10
3:35 pm-5:20 pm
2 stops37h 45m
Phuket City
Sat 8/15
11:50 am-10:25 pm
2 stops46h 35m
$1,551
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Thu 8/13
6:25 am-9:45 am
3 stops39h 20m
Bangkok Suvarnabhumi
Sat 8/22
5:30 pm-12:20 pm
2 stops30h 50m
$1,648
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sun 6/14
1:42 pm-12:55 pm
2 stops35h 13m
Bangkok Suvarnabhumi
Sat 6/20
3:00 am-12:16 am
2 stops33h 16m
$1,673
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Sun 11/8
6:00 am-10:55 pm
2 stops27h 55m
Chiang Mai
Tue 11/10
12:15 am-12:56 pm
2 stops25h 41m
$1,679
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Wed 5/27
2:15 pm-10:50 am
2 stops32h 35m
Phuket City
Tue 6/2
11:50 am-11:56 pm
2 stops48h 06m
$1,680
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sat 8/8
4:45 pm-9:35 am
3 stops28h 50m
Bangkok Suvarnabhumi
Wed 8/19
7:00 am-10:10 am
2 stops39h 10m
$1,694
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Mon 7/27
7:56 pm-10:20 am
2 stops26h 24m
Chiang Mai
Sun 8/9
11:20 am-9:55 am
2 stops34h 35m
$1,715
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 8/12
12:59 pm-9:35 am
3 stops32h 36m
Bangkok Suvarnabhumi
Fri 8/21
7:00 am-11:38 pm
2 stops28h 38m
$1,751
Showing 1-10 of 27 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 8 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 May 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.
Food
7.7
Entertainment
7.8
Comfort
8.2
Crew
8.7
Boarding
8.4
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Food
7.7
Entertainment
7.8
Comfort
8.2
Crew
8.7
Boarding
8.4
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Food
7.7
Entertainment
7.8
Comfort
8.2
Crew
8.7
Boarding
8.4
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Food
7.7
Entertainment
7.8
Comfort
8.2
Crew
8.7
Boarding
8.4
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Food
7.7
Entertainment
7.8
Comfort
8.2
Crew
8.7
Boarding
8.4
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Food
7.7
Entertainment
7.8
Comfort
8.2
Crew
8.7
Boarding
8.4
Overall
8.3
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Top regions
Alternative routes for St. Louis to Thailand
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Thailand by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Thailand by cabin class
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 May 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Thailand flights
Consider these flights traveling from St. Louis to Thailand.
Fly to Thailand regions
Consider these flights traveling to Thailand regions.
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 May 19, 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$1,278 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$983 | Average$1,245 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,007 | Average$1,260 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,048 | Average$1,456 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,094 | Average$1,391 | FlexibilityNo cancel fee | On-time68% |