$648+ 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
May 29 — Jun 51
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Thailand with Cheapflights
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Cheapest flights from St. Louis to ThailandExplore the most affordable flight options available from St. Louis to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
Explore the most affordable flight options available from St. Louis to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
This Fareboom deal was found by Cheapflights users on 4/27. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:44 am
STL
- BKK
2 stops28h 06m
Etihad Airways
Tue 10/203:15 am
BKK
- STL
2 stops28h 53m
Etihad Airways
Deal found 4/27![Etihad Airways logo]()
$999
This Etihad Airways deal was found by Cheapflights users on 4/27. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/43:42 pm
STL
- BKK
2 stops39h 18m
Multiple Airlines
Tue 5/199:00 pm
BKK
- STL
2 stops30h 13m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,030
This Etihad Airways deal was found by Cheapflights users on 4/27. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/209:21 am
STL
- BKK
2 stops32h 54m
Multiple Airlines
Wed 11/188:50 pm
BKK
- STL
2 stops35h 39m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,039
This Etihad Airways deal was found by Cheapflights users on 4/27. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:38 am
STL
- BKK
2 stops35h 07m
Multiple Airlines
Mon 10/262:40 pm
BKK
- STL
2 stops36h 50m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,044
This Etihad Airways deal was found by Cheapflights users on 4/27. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/48:34 am
STL
- BKK
2 stops27h 16m
Multiple Airlines
Sun 9/133:05 pm
BKK
- STL
2 stops36h 22m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,099
This Etihad Airways deal was found by Cheapflights users on 4/25. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:38 am
STL
- HKT
2 stops33h 57m
Multiple Airlines
Mon 10/269:05 am
HKT
- STL
2 stops42h 25m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$1,129
This oojo deal was found by Cheapflights users on 4/27. 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.
Sat 5/92:33 pm
STL
- BKK
2 stops28h 22m
Qatar Airways
Thu 5/212:30 am
BKK
- STL
2 stops30h 00m
Qatar Airways
Deal found 4/27![Qatar Airways logo]()
$1,160
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 8/1912:45 pm
STL
- BKK
2 stops36h 10m
Qatar Airways
Fri 9/49:55 am
BKK
- STL
2 stops42h 19m
Qatar Airways
Deal found 4/29![Qatar Airways logo]()
$1,177
This Etihad Airways deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 11/159:12 am
STL
- BKK
2 stops32h 23m
Multiple Airlines
Mon 11/302:40 pm
BKK
- STL
2 stops36h 07m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$1,179
This Etihad Airways deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 10/157:38 am
STL
- BKK
2 stops35h 07m
Multiple Airlines
Mon 10/193:05 pm
BKK
- STL
2 stops33h 58m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$1,184
This Ovago deal was found by Cheapflights users on 4/27. 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.
Thu 11/197:12 am
STL
- HKT
2 stops27h 38m
Etihad Airways
Tue 11/242:40 am
HKT
- STL
2 stops45h 33m
Etihad Airways
Deal found 4/27![Etihad Airways logo]()
$1,216
This SmartFares deal was found by Cheapflights users on 4/24. 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.
Sun 5/34:46 pm
STL
- HKT
2 stops57h 14m
Multiple Airlines
Fri 5/88:30 pm
HKT
- STL
2 stops39h 29m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,275
Best flights from St. Louis to ThailandDiscover carefully curated flight deals from St. Louis to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
Discover carefully curated flight deals from St. Louis to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
This SmartFares deal was found by Cheapflights users on 4/24. 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.
Sun 5/34:46 pm
STL
- HKT
2 stops57h 14m
Multiple Airlines
Fri 5/88:30 pm
HKT
- STL
2 stops39h 29m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,275
This Qatar Airways deal was found by Cheapflights users on 4/26. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:30 pm
STL
- CNX
3 stops38h 40m
Qatar Airways
Tue 5/128:00 pm
CNX
- STL
3 stops38h 19m
Qatar Airways
Deal found 4/26![Qatar Airways logo]()
$1,509
This United Airlines deal was found by Cheapflights users on 4/24. 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 5/610:25 am
STL
- BKK
3 stops35h 10m
United Airlines
Sun 5/109:35 am
BKK
- STL
2 stops46h 16m
United Airlines
Deal found 4/24![United Airlines logo]()
$1,711
This KAYAK deal was found by Cheapflights users on 4/24. 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.
Sun 5/312:27 pm
STL
- HKT
2 stops34h 23m
Cathay Pacific
Fri 5/812:55 pm
HKT
- STL
3 stops42h 38m
Cathay Pacific
Deal found 4/24![Cathay Pacific logo]()
$2,196
This EVA Air deal was found by Cheapflights users on 4/25. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:46 pm
STL
- CNX
2 stops29h 39m
Multiple Airlines
Tue 5/1211:35 am
CNX
- STL
2 stops39h 41m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$1,410
This KAYAK deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/54:46 pm
STL
- CNX
2 stops29h 39m
Multiple Airlines
Thu 5/141:40 pm
CNX
- STL
3 stops41h 05m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$1,418
This Qatar Airways deal was found by Cheapflights users on 4/27. 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.
Wed 5/1312:27 pm
STL
- CNX
3 stops37h 18m
Qatar Airways
Wed 5/278:00 pm
CNX
- STL
3 stops36h 30m
Qatar Airways
Deal found 4/27![Qatar Airways logo]()
$1,671
This United Airlines deal was found by Cheapflights users on 4/25. 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.
Sat 5/94:44 pm
STL
- BKK
3 stops28h 51m
United Airlines
Fri 5/229:35 am
BKK
- STL
2 stops50h 00m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,741
This Qatar Airways deal was found by Cheapflights users on 4/27. 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 6/239:39 am
STL
- CNX
3 stops35h 41m
Qatar Airways
Fri 7/38:00 pm
CNX
- STL
3 stops40h 15m
Qatar Airways
Deal found 4/27![Qatar Airways logo]()
$1,772
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 7/271:13 pm
STL
- BKK
3 stops32h 22m
United Airlines
Mon 8/107:00 am
BKK
- STL
2 stops28h 45m
United Airlines
Deal found 4/28![United Airlines logo]()
$1,806
This Finnair deal was found by Cheapflights users on 4/24. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/11:45 pm
STL
- BKK
2 stops51h 45m
Multiple Airlines
Mon 6/297:05 am
BKK
- STL
2 stops42h 58m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,644
This Qatar Airways deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/239:39 am
STL
- CNX
3 stops35h 41m
Qatar Airways
Thu 7/28:00 pm
CNX
- STL
3 stops40h 16m
Qatar Airways
Deal found 4/28![Qatar Airways logo]()
$1,772
This United Airlines deal was found by Cheapflights users on 4/25. 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.
Mon 5/182:35 pm
STL
- BKK
3 stops31h 00m
United Airlines
Mon 5/259:35 am
BKK
- STL
2 stops50h 01m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,936
This oojo deal was found by Cheapflights users on 4/27. 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.
Wed 5/276:00 am
STL
- HKT
2 stops44h 15m
Qatar Airways
Tue 6/28:30 pm
HKT
- STL
2 stops39h 24m
Qatar Airways
Deal found 4/27![Qatar Airways logo]()
$1,807
This United Airlines deal was found by Cheapflights users on 4/26. 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 6/101:38 pm
STL
- BKK
3 stops31h 57m
United Airlines
Wed 6/179:35 am
BKK
- STL
2 stops42h 11m
United Airlines
Deal found 4/26![United Airlines logo]()
$1,936
This Etihad Airways deal was found by Cheapflights users on 4/24. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/279:39 am
STL
- HKT
2 stops26h 16m
Multiple Airlines
Tue 6/29:20 pm
HKT
- STL
2 stops34h 01m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,947
This United Airlines deal was found by Cheapflights users on 4/24. 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.
Tue 6/96:00 am
STL
- BKK
3 stops39h 35m
United Airlines
Tue 6/169:35 am
BKK
- STL
2 stops38h 36m
United Airlines
Deal found 4/24![United Airlines logo]()
$1,936
This Mytrip deal was found by Cheapflights users on 4/25. 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.
Tue 6/92:15 pm
STL
- HKT
3 stops33h 55m
Multiple Airlines
Tue 6/1610:15 pm
HKT
- STL
3 stops34h 10m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$2,089
This United Airlines deal was found by Cheapflights users on 4/26. 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 5/2711:25 am
STL
- BKK
3 stops34h 10m
United Airlines
Wed 6/173:45 pm
BKK
- STL
3 stops34h 38m
United Airlines
Deal found 4/26![United Airlines logo]()
$1,947
Last-minute flights from St. Louis to ThailandDiscover last-minute flight deals from St. Louis to Thailand. Data last updated April 29, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Thailand. Data last updated April 29, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 4/24. 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.
Fri 5/18:03 pm
STL
- BKK
2 stops46h 52m
Qatar Airways
Thu 5/142:30 am
BKK
- STL
2 stops31h 49m
Qatar Airways
Deal found 4/24![Qatar Airways logo]()
$1,282
This KAYAK deal was found by Cheapflights users on 4/27. 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.
Fri 5/17:00 am
STL
- BKK
2 stops28h 20m
Multiple Airlines
Sat 5/21:20 am
BKK
- STL
2 stops34h 39m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,466
This Priceline deal was found by Cheapflights users on 4/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/14:30 pm
STL
- BKK
2 stops33h 40m
Qatar Airways
Sun 5/37:00 pm
BKK
- STL
2 stops40h 59m
Qatar Airways
Deal found 4/27![Qatar Airways logo]()
$1,474
This oojo deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/24:46 pm
STL
- BKK
2 stops30h 09m
EVA Air
Mon 5/44:45 pm
BKK
- STL
2 stops35h 05m
EVA Air
Deal found 4/28![EVA Air logo]()
$1,402
This SmartFares deal was found by Cheapflights users on 4/24. 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.
Sun 5/34:46 pm
STL
- HKT
2 stops57h 14m
Multiple Airlines
Fri 5/88:30 pm
HKT
- STL
2 stops39h 29m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,275
This Etihad Airways deal was found by Cheapflights users on 4/27. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/43:42 pm
STL
- BKK
2 stops39h 18m
Multiple Airlines
Tue 5/199:00 pm
BKK
- STL
2 stops30h 13m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,030
This Trip.com deal was found by Cheapflights users on 4/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/43:21 pm
STL
- CNX
3 stops54h 24m
Multiple Airlines
Tue 5/1210:30 am
CNX
- STL
3 stops68h 53m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$1,363
This FlightHub deal was found by Cheapflights users on 4/27. 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.
Tue 5/54:46 pm
STL
- CNX
2 stops29h 39m
Multiple Airlines
Thu 5/1411:35 am
CNX
- STL
2 stops48h 19m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,292
This Trip.com deal was found by Cheapflights users on 4/24. 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.
Wed 5/612:27 pm
STL
- BKK
2 stops30h 23m
Qatar Airways
Sat 5/92:30 am
BKK
- STL
2 stops32h 29m
Qatar Airways
Deal found 4/24![Qatar Airways logo]()
$1,393
This oojo deal was found by Cheapflights users on 4/27. 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.
Sat 5/92:33 pm
STL
- BKK
2 stops28h 22m
Qatar Airways
Thu 5/212:30 am
BKK
- STL
2 stops30h 00m
Qatar Airways
Deal found 4/27![Qatar Airways logo]()
$1,160
This oojo deal was found by Cheapflights users on 4/27. 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.
Sat 5/94:30 pm
STL
- BKK
2 stops26h 20m
Qatar Airways
Sat 5/167:40 pm
BKK
- STL
2 stops38h 39m
Qatar Airways
Deal found 4/27![Qatar Airways logo]()
$1,260
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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
Tue 6/307:05 am
BKK
- STL
2 stops48h 31m
Finnair
Deal found 4/29![Finnair logo]()
$1,463
One-way flights from St. Louis to ThailandSearch for one-way flight options from St. Louis to Thailand. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
Search for one-way flight options from St. Louis to Thailand. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 7/272:52 pm
STL
- BKK
3 stops31h 48m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$648
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Thu 7/92:52 pm
STL
- BKK
3 stops49h 48m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$662
This oojo deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 7/277:21 pm
STL
- BKK
2 stops30h 04m
Qatar Airways
Deal found 4/28![Qatar Airways logo]()
$690
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/283:11 pm
STL
- BKK
3 stops44h 59m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$747
This FlightHub deal was found by Cheapflights users on 4/25. 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.
Thu 7/97:00 am
STL
- BKK
2 stops28h 00m
Japan Airlines
Deal found 4/25![Japan Airlines logo]()
$759
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 6/37:41 pm
STL
- BKK
3 stops40h 29m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$793
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/276:00 am
STL
- BKK
3 stops45h 30m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$811
This Etihad Airways deal was found by Cheapflights users on 4/27. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/12:32 pm
STL
- BKK
2 stops28h 13m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$824
This Ovago deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 7/275:10 am
STL
- BKK
1 stop35h 55m
Singapore Airlines
Deal found 4/28![Singapore Airlines logo]()
$835
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 6/153:57 pm
STL
- BKK
3 stops32h 13m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$837
Find flight deals from St. Louis to Thailand
Keep the following information in mind while searching for St. Louis to Thailand flight deals. Data was last updated April 29, 2026.
Round-trip from | $999 (Fareboom) |
|---|---|
One-way from | $648 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $1,196 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Thailand that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2026.
Use the filters below to find and compare flights from St. Louis to Thailand that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Sun 5/3
4:46 pm-2:00 pm
2 stops57h 14m
Phuket City
Fri 5/8
8:30 pm-11:59 pm
2 stops39h 29m
$1,275
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Mon 5/4
4:46 pm-10:25 am
2 stops29h 39m
Chiang Mai
Tue 5/12
11:35 am-3:16 pm
2 stops39h 41m
$1,410
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Tue 5/5
4:46 pm-10:25 am
2 stops29h 39m
Chiang Mai
Thu 5/14
1:40 pm-6:45 pm
3 stops41h 05m
$1,418
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Mon 5/4
4:30 pm-7:10 pm
3 stops38h 40m
Chiang Mai
Tue 5/12
8:00 pm-10:19 pm
3 stops38h 19m
$1,509
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 6/1
1:45 pm-5:30 am
2 stops51h 45m
Bangkok Suvarnabhumi
Mon 6/29
7:05 am-2:03 pm
2 stops42h 58m
$1,644
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Wed 5/13
12:27 pm-1:45 pm
3 stops37h 18m
Chiang Mai
Wed 5/27
8:00 pm-8:30 pm
3 stops36h 30m
$1,671
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 5/6
10:25 am-9:35 am
3 stops35h 10m
Bangkok Suvarnabhumi
Sun 5/10
9:35 am-7:51 pm
2 stops46h 16m
$1,711
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sat 5/9
4:44 pm-9:35 am
3 stops28h 51m
Bangkok Suvarnabhumi
Fri 5/22
9:35 am-11:35 pm
2 stops50h 00m
$1,741
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Tue 6/23
9:39 am-9:20 am
3 stops35h 41m
Chiang Mai
Fri 7/3
8:00 pm-12:15 am
3 stops40h 15m
$1,772
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Tue 6/23
9:39 am-9:20 am
3 stops35h 41m
Chiang Mai
Thu 7/2
8:00 pm-12:16 am
3 stops40h 16m
$1,772
Showing 1-10 of 25 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
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 9 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.
What is the cheapest month to book a flight from St. Louis to Thailand?
Currently, February is the cheapest month in which you can book a flight from St. Louis to Thailand (average of $167). Flying from St. Louis to Thailand in June is currently the most expensive (average of $1,210). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Thailand
Get insights into the airlines that provide service to Thailand. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Thailand. Reviews last updated April 29, 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.
Overall
8.3
Crew
8.7
Boarding
8.4
Comfort
8.2
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Crew
8.7
Boarding
8.4
Comfort
8.2
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Crew
8.7
Boarding
8.4
Comfort
8.2
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Crew
8.7
Boarding
8.4
Comfort
8.2
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Crew
8.7
Boarding
8.4
Comfort
8.2
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Crew
8.7
Boarding
8.4
Comfort
8.2
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Thailand. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
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St. Louis and Thailand flights
Browse other St. Louis and Thailand flight options. Last updated on April 29, 2026.
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Top 7 airlines flying from St. Louis to Thailand
Discover the top 7 airlines that operate flights from St. Louis to Thailand. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$881 | Average$1,248 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$927 | Average$1,223 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$929 | Average$1,087 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$954 | Average$1,278 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$983 | Average$1,242 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,007 | Average$1,260 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,094 | Average$1,372 | FlexibilityNo cancel fee | On-time68% |