$515+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Oct 28 — Nov 41
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Thailand with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from St. Louis to ThailandExplore the most affordable flight options available from St. Louis to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 28, 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 September 28, 2026.
This Trip.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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.
Tue 11/2411:29 am -
2 stops31h 41m
Fri 12/412:15 pm -
2 stops41h 09m
Deal found 9/26![Multiple Airlines logo]()
$903
This oojo deal was found by Cheapflights users on 9/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:20 pm -
2 stops28h 35m
Sat 12/1211:40 pm -
2 stops61h 19m
Deal found 9/25![Philippine Airlines logo]()
$1,012
This Trip.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 11/81:00 pm -
2 stops30h 10m
Tue 11/1712:15 pm -
2 stops38h 30m
Deal found 9/27![Multiple Airlines logo]()
$1,017
This Etihad Airways deal was found by Cheapflights users on 9/23. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:29 am -
2 stops28h 26m
Wed 10/213:15 am -
2 stops29h 42m
Deal found 9/23![Multiple Airlines logo]()
$1,038
This Expedia deal was found by Cheapflights users on 9/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:00 am -
2 stops41h 05m
Sun 11/811:40 pm -
2 stops51h 45m
Deal found 9/23![Multiple Airlines logo]()
$1,040
This Expedia deal was found by Cheapflights users on 9/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:00 am -
2 stops41h 05m
Wed 11/181:10 pm -
2 stops38h 15m
Deal found 9/24![Multiple Airlines logo]()
$1,041
This Trip.com deal was found by Cheapflights users on 9/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:01 pm -
2 stops48h 24m
Mon 11/212:15 pm -
2 stops62h 30m
Deal found 9/24![Multiple Airlines logo]()
$1,059
This Expedia deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 11/206:00 am -
2 stops41h 05m
Tue 11/2411:40 pm -
2 stops51h 42m
Deal found 9/27![Multiple Airlines logo]()
$1,080
This Trip.com deal was found by Cheapflights users on 9/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:29 am -
2 stops31h 41m
Sat 12/512:15 pm -
2 stops38h 30m
Deal found 9/23![Multiple Airlines logo]()
$1,109
This Cathay Pacific deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 11/107:26 am -
2 stops47h 09m
Tue 11/1711:40 am -
2 stops46h 02m
Deal found 9/26![Multiple Airlines logo]()
$1,128
This Cathay Pacific deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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.
Mon 11/28:10 am -
2 stops38h 10m
Mon 11/166:50 pm -
2 stops42h 09m
Deal found 9/27![Multiple Airlines logo]()
$1,140
This Cathay Pacific deal was found by Cheapflights users on 9/23. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:26 am -
2 stops38h 54m
Mon 11/1612:20 pm -
2 stops44h 02m
Deal found 9/23![Multiple Airlines logo]()
$1,141
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 September 28, 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 September 28, 2026.
This Cathay Pacific deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 11/107:26 am -
2 stops47h 09m
Tue 11/1711:40 am -
2 stops46h 02m
Deal found 9/26![Multiple Airlines logo]()
$1,128
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:45 am -
2 stops24h 45m
Sun 11/89:40 pm -
2 stops28h 43m
Deal found 9/26![Delta logo]()
$1,149
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 10/134:39 pm -
3 stops28h 56m
Thu 10/223:45 pm -
3 stops31h 03m
Deal found 9/27![United Airlines logo]()
$1,168
This Ovago deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 11/104:05 pm -
3 stops50h 05m
Tue 11/1711:40 am -
2 stops42h 03m
Deal found 9/26![Cathay Pacific logo]()
$1,191
This Korean Air deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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.
Mon 10/196:00 am -
2 stops52h 10m
Thu 10/2211:25 pm -
2 stops33h 58m
Deal found 9/26![Korean Air logo]()
$1,304
This Qatar Airways deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 12/16:00 am -
3 stops40h 20m
Fri 12/47:45 pm -
3 stops36h 54m
Deal found 9/27![Qatar Airways logo]()
$2,050
This Cathay Pacific deal was found by Cheapflights users on 9/24. 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.
Wed 11/45:00 am -
2 stops41h 20m
Wed 11/186:50 pm -
2 stops42h 11m
Deal found 9/24![Multiple Airlines logo]()
$1,141
This Delta deal was found by Cheapflights users on 9/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
2 stops27h 45m
Sun 11/1512:20 am -
2 stops36h 02m
Deal found 9/25![Delta logo]()
$1,161
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 10/57:08 am -
2 stops33h 27m
Mon 10/264:55 pm -
3 stops31h 43m
Deal found 9/27![United Airlines logo]()
$1,168
This KAYAK deal was found by Cheapflights users on 9/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/71:06 pm -
2 stops33h 44m
Sat 10/1711:50 am -
2 stops45h 07m
Deal found 9/24![Cathay Pacific logo]()
$1,245
This Cathay Pacific deal was found by Cheapflights users on 9/23. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:26 am -
2 stops38h 54m
Mon 11/1612:20 pm -
2 stops44h 02m
Deal found 9/23![Multiple Airlines logo]()
$1,141
This United Airlines deal was found by Cheapflights users on 9/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:39 pm -
3 stops30h 51m
Wed 11/114:55 pm -
3 stops29h 00m
Deal found 9/23![United Airlines logo]()
$1,169
This Cathay Pacific deal was found by Cheapflights users on 9/24. 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 stops38h 54m
Sun 11/156:50 pm -
2 stops38h 52m
Deal found 9/24![Multiple Airlines logo]()
$1,141
This United Airlines deal was found by Cheapflights users on 9/24. 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 11/41:40 pm -
3 stops32h 50m
Wed 11/184:55 pm -
3 stops29h 00m
Deal found 9/24![United Airlines logo]()
$1,169
This Korean Air deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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.
Tue 12/17:03 am -
2 stops26h 42m
Thu 12/312:20 am -
2 stops26h 08m
Deal found 9/27![Korean Air logo]()
$1,428
This United Airlines deal was found by Cheapflights users on 9/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:30 am -
2 stops27h 20m
Tue 12/84:55 pm -
3 stops32h 58m
Deal found 9/23![United Airlines logo]()
$1,172
This FlightHub deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 10/77:02 am -
2 stops36h 43m
Sat 10/179:20 am -
2 stops50h 39m
Deal found 9/26![Multiple Airlines logo]()
$1,241
This United Airlines deal was found by Cheapflights users on 9/22. 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.
Fri 10/231:29 pm -
3 stops34h 01m
Tue 11/34:55 pm -
3 stops30h 37m
Deal found 9/22![United Airlines logo]()
$1,218
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Fri 11/271:40 pm -
3 stops32h 50m
Wed 12/24:55 pm -
3 stops34h 21m
Deal found 9/25![United Airlines logo]()
$1,218
This Mytrip deal was found by Cheapflights users on 9/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:28 pm -
3 stops31h 22m
Sun 11/1512:20 am -
3 stops31h 54m
Deal found 9/25![Multiple Airlines logo]()
$1,429
This United Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 11/254:39 pm -
3 stops29h 51m
Sat 12/124:55 pm -
3 stops34h 21m
Deal found 9/26![United Airlines logo]()
$1,218
This Korean Air deal was found by Cheapflights users on 9/22. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:00 am -
2 stops49h 45m
Thu 10/229:45 pm -
2 stops35h 38m
Deal found 9/22![Korean Air logo]()
$2,277
This KAYAK deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 12/112:56 pm -
2 stops41h 39m
Fri 12/411:40 am -
2 stops42h 00m
Deal found 9/27![Cathay Pacific logo]()
$2,712
This BusinessClass deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 10/66:32 am -
2 stops27h 03m
Sat 10/179:55 pm -
3 stops48h 55m
Deal found 9/26![Multiple Airlines logo]()
$1,891
This Cathay Pacific deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 12/17:26 am -
2 stops47h 09m
Fri 12/48:30 am -
3 stops24h 57m
Deal found 9/27![Multiple Airlines logo]()
$2,867
This Qatar Airways deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 12/11:21 pm -
3 stops32h 14m
Fri 12/49:10 pm -
3 stops36h 17m
Deal found 9/27![Qatar Airways logo]()
$9,954
This business-class.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/157:34 am -
3 stops35h 36m
Fri 1/227:00 pm -
3 stops35h 18m
Deal found 9/26![Japan Airlines logo]()
$21,226
This KAYAK deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 12/16:55 pm -
3 stops35h 05m
Fri 12/411:05 pm -
2 stops51h 40m
Deal found 9/27![Multiple Airlines logo]()
$7,731
Last-minute flights from St. Louis to ThailandDiscover last-minute flight deals from St. Louis to Thailand. Data last updated September 28, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Thailand. Data last updated September 28, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 10/43:52 pm -
2 stops43h 43m
Sun 11/19:40 pm -
2 stops39h 14m
Deal found 9/27![Delta logo]()
$1,154
This oojo deal was found by Cheapflights users on 9/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:32 am -
2 stops35h 48m
Mon 10/266:55 pm -
2 stops41h 24m
Deal found 9/24![Qatar Airways logo]()
$1,130
This FlightHub deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/54:42 pm -
2 stops58h 38m
Sun 10/252:00 am -
2 stops30h 57m
Deal found 9/27![Multiple Airlines logo]()
$1,144
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 10/57:08 am -
2 stops33h 27m
Mon 10/264:55 pm -
3 stops31h 43m
Deal found 9/27![United Airlines logo]()
$1,168
This oojo deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 10/67:02 am -
2 stops36h 43m
Sat 10/179:20 am -
2 stops50h 39m
Deal found 9/27![Qatar Airways logo]()
$1,228
This FlightHub deal was found by Cheapflights users on 9/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:02 am -
2 stops36h 43m
Sat 10/179:20 am -
2 stops50h 39m
Deal found 9/25![Multiple Airlines logo]()
$1,241
This Etihad Airways deal was found by Cheapflights users on 9/23. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:29 am -
2 stops28h 26m
Wed 10/143:55 pm -
2 stops41h 02m
Deal found 9/23![Multiple Airlines logo]()
$1,038
This Delta deal was found by Cheapflights users on 9/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:47 am -
2 stops30h 18m
Tue 10/132:35 am -
2 stops33h 19m
Deal found 9/25![Delta logo]()
$1,161
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 10/71:36 pm -
2 stops46h 19m
Wed 10/143:45 pm -
3 stops32h 55m
Deal found 9/27![United Airlines logo]()
$1,174
This oojo deal was found by Cheapflights users on 9/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:02 am -
2 stops36h 43m
Sat 10/179:20 am -
2 stops50h 39m
Deal found 9/23![Qatar Airways logo]()
$1,229
This Ovago deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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.
Wed 10/71:06 pm -
2 stops33h 44m
Sat 10/1711:50 am -
2 stops45h 07m
Deal found 9/27![Cathay Pacific logo]()
$1,245
This Cathay Pacific deal was found by Cheapflights users on 9/25. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:29 am -
2 stops39h 51m
Fri 10/3012:20 pm -
2 stops47h 26m
Deal found 9/25![Multiple Airlines logo]()
$1,191
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 September 28, 2026.
Search for one-way flight options from St. Louis to Thailand. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.
This oojo deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 2/43:54 pm -
2 stops31h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Philippine Airlines logo]()
$515
This SmartFares deal was found by Cheapflights users on 9/25. 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 11/253:20 pm -
2 stops28h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$521
This Kiwi.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 10/317:59 pm -
3 stops38h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Multiple Airlines logo]()
$522
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:18 pm -
3 stops40h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$525
This oojo deal was found by Cheapflights users on 9/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:00 am -
2 stops37h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Philippine Airlines logo]()
$528
This SmartFares deal was found by Cheapflights users on 9/24. 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.
Thu 11/196:00 am -
2 stops41h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$533
This Kiwi.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:58 pm -
3 stops50h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Multiple Airlines logo]()
$539
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:44 pm -
3 stops49h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$543
This Expedia deal was found by Cheapflights users on 9/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:00 am -
2 stops51h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$552
This oojo deal was found by Cheapflights users on 9/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/47:34 am -
2 stops33h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Qatar Airways logo]()
$556
This Orbitz deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/103:54 pm -
2 stops64h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Multiple Airlines logo]()
$559
This Delta deal was found by Cheapflights users on 9/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/16:00 am -
2 stops27h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Delta logo]()
$631
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 September 28, 2026.
Round-trip from | $903 (Trip.com) |
|---|---|
One-way from | $515 (oojo) |
Popular in | December |
Cheapest in | August |
Average price | $1,244 |
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 September 28, 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
Wed 11/4
6:00 am-12:05 pm
2 stops41h 05m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$528
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Sun 11/1
6:00 am-10:45 pm
2 stops51h 45m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$552
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Sat 2/6
7:27 am-6:15 am
2 stops33h 48m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$596
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Fri 11/27
6:00 am-12:20 am
2 stops29h 20m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$624
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Fri 10/30
11:31 am-12:00 pm
2 stops36h 29m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$630
St. LouisChiang Mai
STL Lambert-St Louis - CNX Chiang Mai
STLCNX
Lambert-St Louis
Mon 2/1
6:00 am-10:45 pm
2 stops27h 45m
Chiang Mai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$631
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Tue 10/20
8:35 am-9:35 am
3 stops37h 00m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$632
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Sun 10/11
6:32 am-7:35 am
2 stops37h 03m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$638
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Thu 10/22
6:15 am-9:35 am
3 stops39h 20m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$638
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Sun 10/11
7:01 pm-4:35 am
2 stops45h 34m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$644
Showing 1-10 of 47 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-USM
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-USM
STL-HKT
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 $1,040). Flying from St. Louis to Thailand in December is currently the most expensive (average of $1,979). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from St. Louis to Thailand?
The best time to book flights from St. Louis to Thailand is 7 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Thailand
Get insights into the airlines that provide service to Thailand. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Thailand. Reviews last updated September 28, 2026.
See what other customers who have flown with ANA,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
7.8
Comfort
8.2
Overall
8.3
Entertainment
8.0
Crew
8.7
Boarding
8.5
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Food
7.8
Comfort
8.2
Overall
8.3
Entertainment
8.0
Crew
8.7
Boarding
8.5
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Food
7.8
Comfort
8.2
Overall
8.3
Entertainment
8.0
Crew
8.7
Boarding
8.5
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Food
7.8
Comfort
8.2
Overall
8.3
Entertainment
8.0
Crew
8.7
Boarding
8.5
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Food
7.8
Comfort
8.2
Overall
8.3
Entertainment
8.0
Crew
8.7
Boarding
8.5
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Food
7.8
Comfort
8.2
Overall
8.3
Entertainment
8.0
Crew
8.7
Boarding
8.5
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
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
Complete your trip to Thailand by adding a car rental and/or hotel reservation to your travel itinerary.
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St. Louis and Thailand flights
Browse other St. Louis and Thailand flight options. Last updated on September 28, 2026.
Popular flight searches
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St. Louis to Thailand flights
Consider these flights traveling from St. Louis to Thailand.
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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 7,457,451 searches. Data last updated September 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$881 | Average$1,260 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$927 | Average$1,284 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$929 | Average$1,045 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$946 | Average$1,244 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$948 | Average$1,196 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$982 | Average$1,298 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,007 | Average$1,551 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,048 | Average$1,456 | FlexibilityNo cancel fee | On-time74% |