$520+ Cheap flights from St. Louis (STL) to Thailand
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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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
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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 October 25, 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 October 25, 2026.
This Cathay Pacific deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:00 am -
2 stops29h 15m
Tue 11/177:30 am -
2 stops26h 12m
Deal found 10/20![Multiple Airlines logo]()
$1,141
This KAYAK deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:04 am -
2 stops41h 16m
Wed 11/117:30 am -
2 stops24h 52m
Deal found 10/21![Cathay Pacific logo]()
$1,155
This Gurufare deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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.
Thu 10/296:04 am -
2 stops41h 56m
Thu 11/57:30 am -
2 stops24h 52m
Deal found 10/22![Cathay Pacific logo]()
$1,156
This KAYAK deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 am -
2 stops29h 15m
Sat 12/125:45 pm -
2 stops36h 02m
Deal found 10/23![Cathay Pacific logo]()
$1,172
This Cathay Pacific deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am -
2 stops29h 15m
Wed 11/257:30 am -
2 stops29h 28m
Deal found 10/21![Multiple Airlines logo]()
$1,187
This FlightHub deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 10/286:04 am -
2 stops46h 36m
Sun 11/1512:45 pm -
2 stops48h 14m
Deal found 10/21![Cathay Pacific logo]()
$1,196
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/17:05 pm -
2 stops45h 05m
Sun 11/89:10 am -
2 stops49h 42m
Deal found 10/25![United Airlines logo]()
$1,205
This American Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/710:25 am -
2 stops29h 40m
Mon 12/147:55 am -
2 stops25h 32m
Deal found 10/23![American Airlines logo]()
$1,206
This Justfly.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 12/18:02 am -
2 stops43h 18m
Sun 12/2010:25 pm -
2 stops32h 53m
Deal found 10/21![ANA logo]()
$1,208
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 10/288:50 am -
3 stops38h 40m
Wed 11/119:10 am -
2 stops21h 59m
Deal found 10/24![United Airlines logo]()
$1,209
This BusinessClass deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 10/235:27 pm -
2 stops60h 18m
Fri 10/306:50 pm -
2 stops38h 23m
Deal found 10/22![Cathay Pacific logo]()
$1,264
This FlightHub deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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.
Sun 11/156:00 am -
2 stops45h 00m
Sun 1/175:15 pm -
2 stops58h 41m
Deal found 10/21![Multiple Airlines logo]()
$1,280
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 October 25, 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 October 25, 2026.
This Etihad Airways deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/27:23 am -
2 stops27h 17m
Tue 3/238:50 pm -
2 stops30h 43m
Deal found 10/20![Multiple Airlines logo]()
$1,058
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 2/103:10 pm -
3 stops31h 20m
Mon 2/224:55 pm -
3 stops33h 18m
Deal found 10/24![United Airlines logo]()
$1,218
This Qatar Airways deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 2/172:19 pm -
2 stops27h 21m
Fri 2/263:00 am -
2 stops29h 27m
Deal found 10/23![Qatar Airways logo]()
$1,221
This Cathay Pacific deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:26 am -
2 stops44h 14m
Thu 11/127:30 am -
2 stops29h 29m
Deal found 10/24![Cathay Pacific logo]()
$1,230
This BusinessClass deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/127:11 pm -
2 stops57h 44m
Thu 1/288:55 pm -
2 stops29h 35m
Deal found 10/20![Etihad Airways logo]()
$1,318
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 2/156:15 am -
3 stops40h 15m
Tue 3/24:55 pm -
3 stops29h 25m
Deal found 10/24![United Airlines logo]()
$1,218
This Malaysia Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/136:00 am -
3 stops38h 50m
Sat 2/206:20 pm -
3 stops42h 39m
Deal found 10/22![Malaysia Airlines logo]()
$2,594
This Expedia deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:04 am -
2 stops50h 46m
Fri 12/1111:25 pm -
2 stops52h 41m
Deal found 10/20![Multiple Airlines logo]()
$1,326
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 3/175:59 pm -
3 stops29h 31m
Wed 3/313:45 pm -
3 stops35h 53m
Deal found 10/22![United Airlines logo]()
$1,218
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/23:00 pm -
3 stops31h 30m
Tue 3/234:55 pm -
3 stops27h 24m
Deal found 10/20![United Airlines logo]()
$1,219
This SmartFares deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/96:04 am -
2 stops40h 16m
Wed 12/166:50 pm -
2 stops42h 09m
Deal found 10/25![Multiple Airlines logo]()
$1,400
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 2/155:00 am -
2 stops28h 50m
Mon 3/14:55 pm -
3 stops29h 25m
Deal found 10/24![United Airlines logo]()
$1,221
This Qatar Airways deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 1/1212:55 pm -
3 stops41h 05m
Thu 1/287:45 pm -
3 stops37h 47m
Deal found 10/22![Qatar Airways logo]()
$1,707
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/86:50 pm -
2 stops40h 30m
Thu 11/124:55 pm -
3 stops30h 07m
Deal found 10/21![United Airlines logo]()
$1,227
This Ovago deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 1/123:54 pm -
2 stops29h 41m
Thu 1/287:45 pm -
3 stops56h 11m
Deal found 10/21![Multiple Airlines logo]()
$1,614
This Malaysia Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/132:24 pm -
2 stops33h 31m
Sat 2/206:20 pm -
3 stops42h 39m
Deal found 10/22![Multiple Airlines logo]()
$2,377
This Malaysia Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/106:58 pm -
2 stops28h 57m
Wed 3/174:55 pm -
3 stops43h 01m
Deal found 10/21![Multiple Airlines logo]()
$2,687
This Malaysia Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/52:24 pm -
2 stops33h 31m
Thu 3/1110:30 am -
3 stops50h 26m
Deal found 10/21![Multiple Airlines logo]()
$2,815
This Malaysia Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/122:24 pm -
2 stops33h 31m
Fri 3/194:55 pm -
3 stops43h 01m
Deal found 10/21![Multiple Airlines logo]()
$2,819
Last-minute flights from St. Louis to ThailandDiscover last-minute flight deals from St. Louis to Thailand. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Thailand. Data last updated October 25, 2026 and is based on user searches.
This BusinessClass deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 10/235:27 pm -
2 stops60h 18m
Fri 10/306:50 pm -
2 stops38h 23m
Deal found 10/22![Cathay Pacific logo]()
$1,264
This KAYAK deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:04 am -
2 stops41h 16m
Wed 11/117:30 am -
2 stops24h 52m
Deal found 10/21![Cathay Pacific logo]()
$1,155
This FlightHub deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 10/286:04 am -
2 stops46h 36m
Sun 11/1512:45 pm -
2 stops48h 14m
Deal found 10/21![Cathay Pacific logo]()
$1,196
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 10/288:50 am -
3 stops38h 40m
Wed 11/119:10 am -
2 stops21h 59m
Deal found 10/24![United Airlines logo]()
$1,209
This Gurufare deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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.
Thu 10/296:04 am -
2 stops41h 56m
Thu 11/57:30 am -
2 stops24h 52m
Deal found 10/22![Cathay Pacific logo]()
$1,156
This Cathay Pacific deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:04 am -
2 stops41h 16m
Mon 11/26:50 pm -
2 stops38h 29m
Deal found 10/21![Cathay Pacific logo]()
$1,336
This Qatar Airways deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 10/297:02 am -
2 stops47h 53m
Mon 11/28:30 pm -
2 stops38h 45m
Deal found 10/24![Qatar Airways logo]()
$1,367
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/17:05 pm -
2 stops45h 05m
Sun 11/89:10 am -
2 stops49h 42m
Deal found 10/25![United Airlines logo]()
$1,205
This Cathay Pacific deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:00 am -
2 stops29h 15m
Tue 11/177:30 am -
2 stops26h 12m
Deal found 10/20![Multiple Airlines logo]()
$1,141
This FlightHub deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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.
Sun 11/156:00 am -
2 stops45h 00m
Sun 1/175:15 pm -
2 stops58h 41m
Deal found 10/21![Multiple Airlines logo]()
$1,280
This Cathay Pacific deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am -
2 stops29h 15m
Wed 11/257:30 am -
2 stops29h 28m
Deal found 10/21![Multiple Airlines logo]()
$1,187
This KAYAK deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 am -
2 stops29h 15m
Sat 12/125:45 pm -
2 stops36h 02m
Deal found 10/23![Cathay Pacific logo]()
$1,172
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 October 25, 2026.
Search for one-way flight options from St. Louis to Thailand. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This SmartFares deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 1/183:54 pm -
2 stops28h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$520
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/137:02 pm -
3 stops56h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$532
This Trip.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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.
Sun 12/62:27 pm -
3 stops57h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$540
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/167:59 pm -
3 stops39h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$542
This Etihad Airways deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/410:27 am -
2 stops24h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$550
This Alaska Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/133:54 pm -
2 stops43h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Alaska Airlines logo]()
$560
This Etihad Airways deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/69:13 am -
2 stops33h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$565
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/213:04 pm -
3 stops55h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$573
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/206:00 am -
3 stops43h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$808
This Ovago deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:47 am -
2 stops34h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Etihad Airways logo]()
$919
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/136:00 am -
2 stops27h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Delta logo]()
$958
This Ovago deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/128:22 am -
2 stops33h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Etihad Airways logo]()
$959
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 October 25, 2026.
Round-trip from | $1,077 (oojo) |
|---|---|
One-way from | $520 (SmartFares) |
Popular in | December |
Cheapest in | February |
Average price | $1,280 |
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 7,457,451 searches. Data last updated October 25, 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 Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Sat 2/6
8:19 pm-12:15 am
2 stops38h 56m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$606
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Sat 2/6
6:01 am-12:15 am
2 stops29h 14m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$640
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Tue 4/6
3:15 pm-9:35 am
3 stops30h 20m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$657
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Thu 2/4
10:45 am-11:30 am
3 stops35h 45m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$657
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Fri 10/30
1:08 pm-11:30 am
3 stops34h 22m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$681
St. LouisPhuket City
STL Lambert-St Louis - HKT Phuket City
STLHKT
Lambert-St Louis
Fri 11/20
6:00 am-2:20 pm
3 stops43h 20m
Phuket City
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$808
Quickest round-trip
St. LouisChiang Mai
STL Lambert-St Louis - CNX Chiang Mai
STLCNX
Lambert-St Louis
Sun 12/13
6:00 am-10:45 pm
2 stops27h 45m
Chiang Mai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$958
St. LouisChiang Mai
STL Lambert-St Louis - CNX Chiang Mai
STLCNX
Lambert-St Louis
Sat 12/12
8:22 am-6:25 am
2 stops33h 03m
Chiang Mai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$959
St. LouisChiang Mai
STL Lambert-St Louis - CNX Chiang Mai
STLCNX
Lambert-St Louis
Sun 12/13
6:04 am-11:35 pm
3 stops52h 31m
Chiang Mai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$1,002
St. LouisChiang Mai
STL Lambert-St Louis - CNX Chiang Mai
STLCNX
Lambert-St Louis
Sat 12/12
7:54 pm-9:50 am
3 stops48h 56m
Chiang Mai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$1,051
Showing 1-10 of 30 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, August is the cheapest month in which you can book a flight from St. Louis to Thailand (average of $1,031). Flying from St. Louis to Thailand in December is currently the most expensive (average of $1,917). 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 October 25, 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.
Crew
8.7
Comfort
8.2
Food
7.7
Boarding
8.4
Overall
8.3
Entertainment
7.8
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Crew
8.7
Comfort
8.2
Food
7.7
Boarding
8.4
Overall
8.3
Entertainment
7.8
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Crew
8.7
Comfort
8.2
Food
7.7
Boarding
8.4
Overall
8.3
Entertainment
7.8
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Crew
8.7
Comfort
8.2
Food
7.7
Boarding
8.4
Overall
8.3
Entertainment
7.8
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Crew
8.7
Comfort
8.2
Food
7.7
Boarding
8.4
Overall
8.3
Entertainment
7.8
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Crew
8.7
Comfort
8.2
Food
7.7
Boarding
8.4
Overall
8.3
Entertainment
7.8
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
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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Complete your trip
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St. Louis and Thailand flights
Browse other St. Louis and Thailand flight options. Last updated on October 25, 2026.
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Top 8 airlines flying from St. Louis to Thailand
Discover the top 8 airlines that operate flights from St. Louis to Thailand. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$793 | Average$1,154 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$881 | Average$1,270 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$927 | Average$1,285 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$929 | Average$1,087 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$946 | Average$1,204 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$948 | Average$1,196 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$982 | Average$1,308 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,207 | Average$1,551 | FlexibilityNo cancel fee | On-time80% |