$550+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Aug 4 — Aug 111
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 July 5, 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 July 5, 2026.
This Travelocity deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:04 pm
STL
- BKK
2 stops30h 46m
Multiple Airlines
Wed 12/1612:15 pm
BKK
- STL
2 stops45h 58m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$1,015
This oojo deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:54 am
STL
- BKK
2 stops29h 01m
Etihad Airways
Wed 11/188:30 am
BKK
- STL
2 stops41h 47m
Etihad Airways
Deal found 7/1![Etihad Airways logo]()
$1,030
This oojo deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 10/195:28 am
STL
- BKK
2 stops30h 27m
Etihad Airways
Mon 10/268:30 am
BKK
- STL
2 stops42h 16m
Etihad Airways
Deal found 7/2![Etihad Airways logo]()
$1,031
This Etihad Airways deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/26:54 am
STL
- BKK
2 stops29h 01m
Multiple Airlines
Fri 9/183:15 am
BKK
- STL
2 stops33h 12m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,038
This Ovago deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/134:54 pm
STL
- HKT
2 stops25h 46m
Etihad Airways
Thu 8/279:25 am
HKT
- STL
2 stops45h 34m
Etihad Airways
Deal found 7/2![Etihad Airways logo]()
$1,068
This Booking.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/293:40 pm
STL
- BKK
2 stops41h 30m
Multiple Airlines
Sat 12/1912:15 pm
BKK
- STL
2 stops41h 41m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,094
This Etihad Airways deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 10/97:16 am
STL
- BKK
2 stops28h 39m
Multiple Airlines
Wed 10/213:15 am
BKK
- STL
2 stops29h 53m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,095
This Etihad Airways deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 10/2811:31 am
STL
- BKK
2 stops31h 04m
Multiple Airlines
Fri 11/272:40 pm
BKK
- STL
2 stops40h 14m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$1,098
This Etihad Airways deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 8/276:00 am
STL
- BKK
2 stops36h 45m
Multiple Airlines
Fri 9/113:55 pm
BKK
- STL
2 stops36h 53m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$1,100
This Trip.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/178:08 pm
STL
- BKK
3 stops40h 32m
Multiple Airlines
Fri 8/213:15 am
BKK
- STL
3 stops51h 58m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,124
This KAYAK deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 9/1512:28 pm
STL
- BKK
2 stops37h 17m
Lufthansa
Mon 10/510:55 pm
BKK
- STL
2 stops34h 14m
Lufthansa
Deal found 6/30![Lufthansa logo]()
$1,159
This KAYAK deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 9/1312:59 pm
STL
- BKK
2 stops36h 46m
Lufthansa
Thu 10/1510:55 pm
BKK
- STL
2 stops52h 48m
Lufthansa
Deal found 6/30![Lufthansa logo]()
$1,174
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 July 5, 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 July 5, 2026.
This Etihad Airways deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 10/167:16 am
STL
- BKK
2 stops28h 39m
Multiple Airlines
Sun 10/258:50 pm
BKK
- STL
2 stops35h 42m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$1,038
This Ovago deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/134:54 pm
STL
- HKT
2 stops25h 46m
Etihad Airways
Thu 8/279:25 am
HKT
- STL
2 stops45h 34m
Etihad Airways
Deal found 7/2![Etihad Airways logo]()
$1,068
This Qatar Airways deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 9/1011:01 am
STL
- BKK
2 stops32h 34m
Qatar Airways
Sun 9/133:00 am
BKK
- STL
2 stops33h 27m
Qatar Airways
Deal found 7/4![Qatar Airways logo]()
$1,290
This Etihad Airways deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 10/1111:31 am
STL
- BKK
2 stops31h 14m
Multiple Airlines
Fri 10/233:15 am
BKK
- STL
2 stops29h 58m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,038
This Etihad Airways deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/79:12 am
STL
- BKK
2 stops37h 33m
Multiple Airlines
Sun 11/228:50 pm
BKK
- STL
2 stops40h 08m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,038
This Etihad Airways deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/171:06 pm
STL
- BKK
2 stops29h 39m
Multiple Airlines
Sun 10/258:50 pm
BKK
- STL
2 stops36h 18m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$1,038
This Qatar Airways deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 9/106:29 am
STL
- HKT
2 stops37h 16m
Qatar Airways
Mon 9/148:30 pm
HKT
- STL
2 stops58h 08m
Qatar Airways
Deal found 7/1![Qatar Airways logo]()
$1,347
This China Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:45 pm
STL
- BKK
2 stops25h 00m
Multiple Airlines
Fri 8/2110:50 am
BKK
- STL
2 stops25h 00m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$1,315
This Qatar Airways deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 10/217:29 am
STL
- CNX
3 stops37h 51m
Qatar Airways
Fri 10/307:45 pm
CNX
- STL
3 stops37h 28m
Qatar Airways
Deal found 7/1![Qatar Airways logo]()
$1,628
This China Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/87:56 pm
STL
- BKK
2 stops25h 49m
Multiple Airlines
Wed 8/1910:50 am
BKK
- STL
2 stops23h 45m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$1,332
This Qatar Airways deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/211:25 pm
STL
- CNX
3 stops31h 55m
Qatar Airways
Mon 8/248:00 pm
CNX
- STL
3 stops39h 34m
Qatar Airways
Deal found 7/1![Qatar Airways logo]()
$1,824
This KAYAK deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 8/217:36 pm
STL
- CNX
2 stops26h 49m
Multiple Airlines
Mon 8/248:00 pm
CNX
- STL
3 stops54h 06m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$1,468
This Justfly.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 12/13:24 pm
STL
- CNX
2 stops30h 11m
Multiple Airlines
Fri 12/411:50 am
CNX
- STL
2 stops39h 36m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,490
This Cathay Pacific deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/1312:45 pm
STL
- HKT
2 stops34h 05m
Multiple Airlines
Thu 8/277:35 am
HKT
- STL
3 stops27h 06m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,576
This Cathay Pacific deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/1610:16 am
STL
- HKT
2 stops36h 34m
Multiple Airlines
Tue 9/17:35 am
HKT
- STL
3 stops28h 07m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$1,584
Last-minute flights from St. Louis to ThailandDiscover last-minute flight deals from St. Louis to Thailand. Data last updated July 5, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Thailand. Data last updated July 5, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:10 pm
STL
- BKK
2 stops28h 55m
Air Canada
Mon 8/177:45 am
BKK
- STL
2 stops46h 57m
Air Canada
Deal found 7/3![Air Canada logo]()
$1,334
This China Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/87:56 pm
STL
- BKK
2 stops25h 49m
Multiple Airlines
Wed 8/1910:50 am
BKK
- STL
2 stops23h 45m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$1,332
This China Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:45 pm
STL
- BKK
2 stops25h 00m
Multiple Airlines
Fri 8/2110:50 am
BKK
- STL
2 stops25h 00m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,315
This Ovago deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/134:54 pm
STL
- HKT
2 stops25h 46m
Etihad Airways
Thu 8/279:25 am
HKT
- STL
2 stops45h 34m
Etihad Airways
Deal found 7/2![Etihad Airways logo]()
$1,068
This oojo deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:45 pm
STL
- BKK
2 stops27h 15m
Cathay Pacific
Sat 8/223:00 pm
BKK
- STL
2 stops43h 41m
Cathay Pacific
Deal found 7/1![Cathay Pacific logo]()
$1,341
This Trip.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/178:08 pm
STL
- BKK
3 stops40h 32m
Multiple Airlines
Fri 8/213:15 am
BKK
- STL
3 stops51h 58m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,124
This FlightHub deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 8/196:00 am
STL
- BKK
2 stops43h 25m
Qatar Airways
Thu 9/33:00 am
BKK
- STL
2 stops28h 27m
Qatar Airways
Deal found 7/1![Qatar Airways logo]()
$1,274
This China Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:00 pm
STL
- BKK
2 stops31h 10m
Multiple Airlines
Wed 8/2610:50 am
BKK
- STL
2 stops23h 45m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,298
This oojo deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:54 am
STL
- BKK
2 stops29h 01m
Etihad Airways
Wed 11/188:30 am
BKK
- STL
2 stops41h 47m
Etihad Airways
Deal found 7/1![Etihad Airways logo]()
$1,030
This oojo deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:36 pm
STL
- BKK
2 stops28h 34m
China Airlines
Sun 8/232:40 am
BKK
- STL
2 stops47h 26m
China Airlines
Deal found 7/4![China Airlines logo]()
$1,313
This Etihad Airways deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 8/276:00 am
STL
- BKK
2 stops36h 45m
Multiple Airlines
Fri 9/113:55 pm
BKK
- STL
2 stops36h 53m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$1,100
This Etihad Airways deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 8/288:34 am
STL
- BKK
2 stops27h 21m
Multiple Airlines
Fri 9/253:15 am
BKK
- STL
2 stops33h 12m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$1,038
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 July 5, 2026.
Search for one-way flight options from St. Louis to Thailand. Find affordable one-way fares based on user searches. Data last updated July 5, 2026.
This oojo deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/216:29 am
STL
- BKK
2 stops29h 06m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$550
This Kiwi.com deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:45 pm
STL
- BKK
3 stops45h 55m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$582
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/38:08 pm
STL
- BKK
3 stops50h 32m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$603
This oojo deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:02 am
STL
- BKK
2 stops29h 33m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$627
This oojo deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:32 am
STL
- BKK
2 stops34h 03m
Qatar Airways
Deal found 7/4![Qatar Airways logo]()
$629
This oojo deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:02 am
STL
- BKK
2 stops29h 33m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$641
This FlightHub deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 7/2212:10 pm
STL
- BKK
2 stops28h 55m
Air Canada
Deal found 6/30![Air Canada logo]()
$672
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/221:13 pm
STL
- BKK
3 stops32h 22m
United Airlines
Deal found 7/3![United Airlines logo]()
$764
This Ovago deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/214:40 pm
STL
- BKK
1 stop28h 55m
Air China
Deal found 7/3![Air China logo]()
$834
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:59 pm
STL
- BKK
3 stops32h 36m
United Airlines
Deal found 7/1![United Airlines logo]()
$863
This BusinessClass deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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.
Thu 9/106:00 am
STL
- BKK
2 stops35h 45m
Japan Airlines
Deal found 7/5![Japan Airlines logo]()
$1,143
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 July 5, 2026.
Round-trip from | $1,015 (Travelocity) |
|---|---|
One-way from | $550 (oojo) |
Popular in | December |
Cheapest in | August |
Average price | $1,391 |
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 July 5, 2026.
Use the filters below to find and compare flights from St. Louis to Thailand that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Fri 10/16
7:16 am-11:55 pm
2 stops28h 39m
Bangkok Suvarnabhumi
Sun 10/25
8:50 pm-8:32 pm
2 stops35h 42m
$1,038
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sun 10/11
11:31 am-6:45 am
2 stops31h 14m
Bangkok Suvarnabhumi
Fri 10/23
3:15 am-9:13 pm
2 stops29h 58m
$1,038
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sat 11/7
9:12 am-11:45 am
2 stops37h 33m
Bangkok Suvarnabhumi
Sun 11/22
8:50 pm-11:58 pm
2 stops40h 08m
$1,038
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sat 10/17
1:06 pm-6:45 am
2 stops29h 39m
Bangkok Suvarnabhumi
Sun 10/25
8:50 pm-9:08 pm
2 stops36h 18m
$1,038
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Thu 8/13
4:54 pm-6:40 am
2 stops25h 46m
Phuket City
Thu 8/27
9:25 am-6:59 pm
2 stops45h 34m
$1,068
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Thu 9/10
11:01 am-7:35 am
2 stops32h 34m
Bangkok Suvarnabhumi
Sun 9/13
3:00 am-12:27 am
2 stops33h 27m
$1,290
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 8/12
8:45 pm-9:45 am
2 stops25h 00m
Bangkok Suvarnabhumi
Fri 8/21
10:50 am-11:50 pm
2 stops25h 00m
$1,315
Quickest round-trip
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sat 8/8
7:56 pm-9:45 am
2 stops25h 49m
Bangkok Suvarnabhumi
Wed 8/19
10:50 am-10:35 pm
2 stops23h 45m
$1,332
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Thu 9/10
6:29 am-7:45 am
2 stops37h 16m
Phuket City
Mon 9/14
8:30 pm-6:38 pm
2 stops58h 08m
$1,347
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Fri 8/21
7:36 pm-10:25 am
2 stops26h 49m
Chiang Mai
Mon 8/24
8:00 pm-2:06 pm
3 stops54h 06m
$1,468
Showing 1-10 of 22 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Thailand
Have a flexible travel schedule? Discover the best time to fly to Thailand from St. Louis with our price prediction graph.
STL-BKK
STL-HKT
STL-CNX
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Thailand
STL-TH0
STL-BKK
STL-HKT
STL-CNX
What is the cheapest month to book a flight from St. Louis to Thailand?
Currently, February is the cheapest month in which you can book a flight from St. Louis to Thailand (average of $167). Flying from St. Louis to Thailand in June is currently the most expensive (average of $1,210). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from St. Louis to Thailand?
The best time to book flights from St. Louis to Thailand is 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 July 5, 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
Boarding
8.4
Entertainment
7.8
Crew
8.7
Comfort
8.2
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Boarding
8.4
Entertainment
7.8
Crew
8.7
Comfort
8.2
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Boarding
8.4
Entertainment
7.8
Crew
8.7
Comfort
8.2
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Boarding
8.4
Entertainment
7.8
Crew
8.7
Comfort
8.2
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Boarding
8.4
Entertainment
7.8
Crew
8.7
Comfort
8.2
Food
7.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Boarding
8.4
Entertainment
7.8
Crew
8.7
Comfort
8.2
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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Alternative routes for St. Louis to Thailand
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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 July 5, 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 2,558,603 searches. Data last updated July 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$881 | Average$1,180 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$927 | Average$1,235 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$929 | Average$1,106 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$946 | Average$1,204 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$954 | Average$1,274 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$982 | Average$1,234 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,007 | Average$1,289 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,048 | Average$1,456 | FlexibilityNo cancel fee | On-time74% |