$411+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Mar 27 — Apr 31
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 February 25, 2026.
Explore the most affordable flight options available from St. Louis to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 25, 2026.
This Gurufare deal was found by Cheapflights users on 2/24. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:56 pm
STL
- BKK
2 stops28h 04m
Multiple Airlines
Thu 9/101:10 pm
BKK
- STL
2 stops37h 16m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$879
This KAYAK deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:06 am
STL
- BKK
2 stops30h 04m
Cathay Pacific
Wed 9/3011:00 am
BKK
- STL
2 stops23h 25m
Cathay Pacific
Deal found 2/23![Cathay Pacific logo]()
$888
This oojo deal was found by Cheapflights users on 2/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:24 pm
STL
- BKK
2 stops32h 36m
STARLUX Airlines
Fri 10/161:10 pm
BKK
- STL
2 stops37h 16m
STARLUX Airlines
Deal found 2/22![STARLUX Airlines logo]()
$898
This oojo deal was found by Cheapflights users on 2/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:08 am
STL
- HKT
2 stops36h 42m
Cathay Pacific
Wed 9/911:50 am
HKT
- STL
2 stops47h 30m
Cathay Pacific
Deal found 2/22![Cathay Pacific logo]()
$908
This flugladen.de deal was found by Cheapflights users on 2/23. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:00 am
STL
- BKK
2 stops29h 10m
Multiple Airlines
Tue 4/217:35 am
BKK
- STL
2 stops28h 24m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$920
This Etihad Airways deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/237:05 am
STL
- BKK
2 stops28h 20m
Multiple Airlines
Thu 5/283:05 pm
BKK
- STL
2 stops38h 15m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$955
This oojo deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:00 am
STL
- BKK
2 stops44h 30m
STARLUX Airlines
Mon 3/95:40 pm
BKK
- STL
2 stops56h 11m
STARLUX Airlines
Deal found 2/21![STARLUX Airlines logo]()
$964
This oojo deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/227:00 am
STL
- BKK
2 stops45h 30m
STARLUX Airlines
Sun 5/315:50 pm
BKK
- STL
2 stops57h 26m
STARLUX Airlines
Deal found 2/21![STARLUX Airlines logo]()
$969
This oojo deal was found by Cheapflights users on 2/24. 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.
Tue 3/107:00 am
STL
- BKK
2 stops45h 30m
STARLUX Airlines
Fri 3/131:45 pm
BKK
- STL
2 stops22h 14m
STARLUX Airlines
Deal found 2/24![STARLUX Airlines logo]()
$974
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/85:55 pm
STL
- BKK
3 stops29h 30m
United Airlines
Sun 5/179:35 am
BKK
- STL
2 stops47h 33m
United Airlines
Deal found 2/21![United Airlines logo]()
$975
This SmartFares deal was found by Cheapflights users on 2/23. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/23:24 pm
STL
- BKK
2 stops32h 41m
Multiple Airlines
Sun 11/152:35 am
BKK
- STL
2 stops48h 51m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$979
This KAYAK deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/110:37 am
STL
- BKK
2 stops24h 38m
Cathay Pacific
Wed 3/117:55 am
BKK
- STL
2 stops27h 03m
Cathay Pacific
Deal found 2/23![Cathay Pacific logo]()
$982
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 February 25, 2026.
Discover carefully curated flight deals from St. Louis to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 25, 2026.
This China Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:35 am
STL
- CNX
2 stops37h 45m
Multiple Airlines
Wed 4/2911:20 am
CNX
- STL
2 stops23h 55m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$1,087
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/78:54 am
STL
- BKK
3 stops36h 41m
United Airlines
Tue 4/143:45 pm
BKK
- STL
3 stops32h 37m
United Airlines
Deal found 2/21![United Airlines logo]()
$1,100
This oojo deal was found by Cheapflights users on 2/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:33 pm
STL
- HKT
2 stops52h 17m
Cathay Pacific
Thu 4/3011:50 am
HKT
- STL
2 stops43h 43m
Cathay Pacific
Deal found 2/22![Cathay Pacific logo]()
$1,323
This Qatar Airways deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:45 am
STL
- CNX
3 stops35h 30m
Qatar Airways
Thu 5/148:00 pm
CNX
- STL
3 stops38h 19m
Qatar Airways
Deal found 2/22![Qatar Airways logo]()
$1,339
This lastminute.com deal was found by Cheapflights users on 2/24. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/107:15 am
STL
- HKT
2 stops26h 55m
Korean Air
Fri 4/1711:25 pm
HKT
- STL
2 stops35h 48m
Korean Air
Deal found 2/24![Korean Air logo]()
$1,434
This oojo deal was found by Cheapflights users on 2/24. 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 3/167:00 am
STL
- CNX
2 stops39h 35m
EVA Air
Tue 3/3111:35 am
CNX
- STL
2 stops39h 16m
EVA Air
Deal found 2/24![EVA Air logo]()
$1,450
This Delta deal was found by Cheapflights users on 2/25. 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 4/11:39 pm
STL
- HKT
2 stops44h 31m
Delta
Thu 4/3011:25 pm
HKT
- STL
2 stops37h 00m
Delta
Deal found 2/25![Delta logo]()
$1,481
This oojo deal was found by Cheapflights users on 2/23. 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.
Mon 3/167:00 am
STL
- CNX
2 stops39h 25m
China Airlines
Tue 3/3111:20 am
CNX
- STL
2 stops39h 31m
China Airlines
Deal found 2/23![China Airlines logo]()
$1,519
This China Airlines deal was found by Cheapflights users on 2/25. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:00 am
STL
- BKK
2 stops38h 45m
Multiple Airlines
Mon 4/201:20 pm
BKK
- STL
3 stops37h 30m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$1,090
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/219:00 am
STL
- BKK
3 stops62h 25m
United Airlines
Sun 5/313:45 pm
BKK
- STL
3 stops60h 01m
United Airlines
Deal found 2/21![United Airlines logo]()
$1,129
This China Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/88:35 am
STL
- BKK
2 stops43h 45m
Multiple Airlines
Tue 4/211:20 pm
BKK
- STL
3 stops37h 30m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$1,112
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/77:41 am
STL
- BKK
3 stops38h 44m
United Airlines
Tue 3/104:55 pm
BKK
- STL
3 stops31h 32m
United Airlines
Deal found 2/21![United Airlines logo]()
$1,162
This China Airlines deal was found by Cheapflights users on 2/22. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:30 am
STL
- CNX
2 stops37h 50m
Multiple Airlines
Wed 5/1311:20 am
CNX
- STL
2 stops23h 55m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$1,113
This United Airlines deal was found by Cheapflights users on 2/23. 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.
Mon 3/232:50 pm
STL
- BKK
3 stops32h 35m
United Airlines
Mon 4/133:45 pm
BKK
- STL
3 stops28h 40m
United Airlines
Deal found 2/23![United Airlines logo]()
$1,180
This oojo deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/189:35 am
STL
- HKT
2 stops44h 00m
Cathay Pacific
Wed 3/2512:20 pm
HKT
- STL
2 stops47h 38m
Cathay Pacific
Deal found 2/21![Cathay Pacific logo]()
$1,482
This Trip.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/73:50 pm
STL
- CNX
2 stops30h 30m
Multiple Airlines
Tue 4/1411:20 am
CNX
- STL
2 stops39h 31m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$1,132
This United Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:05 pm
STL
- BKK
3 stops51h 30m
United Airlines
Thu 4/303:45 pm
BKK
- STL
2 stops26h 02m
United Airlines
Deal found 2/22![United Airlines logo]()
$1,204
This China Airlines deal was found by Cheapflights users on 2/22. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/237:00 am
STL
- BKK
2 stops38h 50m
Multiple Airlines
Mon 4/610:50 am
BKK
- STL
3 stops40h 00m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$1,179
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/161:38 pm
STL
- BKK
3 stops31h 57m
United Airlines
Wed 7/223:45 pm
BKK
- STL
3 stops40h 58m
United Airlines
Deal found 2/21![United Airlines logo]()
$1,260
This Expedia deal was found by Cheapflights users on 2/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:00 am
STL
- HKT
2 stops49h 55m
Multiple Airlines
Wed 4/1510:15 pm
HKT
- STL
2 stops37h 44m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$1,203
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:46 am
STL
- BKK
3 stops36h 49m
United Airlines
Mon 5/259:35 am
BKK
- STL
2 stops60h 32m
United Airlines
Deal found 2/21![United Airlines logo]()
$1,272
This Trip.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/64:20 pm
STL
- CNX
2 stops30h 05m
Multiple Airlines
Mon 4/1311:35 am
CNX
- STL
2 stops39h 16m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$1,253
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/248:00 am
STL
- BKK
3 stops37h 35m
United Airlines
Sun 5/319:35 am
BKK
- STL
3 stops66h 11m
United Airlines
Deal found 2/21![United Airlines logo]()
$1,321
This EVA Air deal was found by Cheapflights users on 2/24. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/13:50 pm
STL
- HKT
3 stops34h 15m
Multiple Airlines
Thu 4/3011:40 am
HKT
- STL
3 stops30h 07m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$1,375
This Cathay Pacific deal was found by Cheapflights users on 2/22. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/184:13 pm
STL
- HKT
2 stops31h 07m
Multiple Airlines
Wed 3/2512:20 pm
HKT
- STL
2 stops47h 38m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$1,508
Last-minute flights from St. Louis to ThailandDiscover last-minute flight deals from St. Louis to Thailand. Data last updated February 25, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Thailand. Data last updated February 25, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/110:37 am
STL
- BKK
2 stops24h 38m
Cathay Pacific
Wed 3/117:55 am
BKK
- STL
2 stops27h 03m
Cathay Pacific
Deal found 2/23![Cathay Pacific logo]()
$982
This Expedia deal was found by Cheapflights users on 2/23. 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.
Sun 3/110:37 am
STL
- HKT
2 stops35h 43m
Multiple Airlines
Fri 4/310:15 pm
HKT
- STL
2 stops37h 44m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$1,274
This oojo deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:00 am
STL
- BKK
2 stops44h 30m
STARLUX Airlines
Mon 3/95:40 pm
BKK
- STL
2 stops56h 11m
STARLUX Airlines
Deal found 2/21![STARLUX Airlines logo]()
$964
This oojo deal was found by Cheapflights users on 2/23. 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.
Mon 3/22:47 pm
STL
- BKK
2 stops31h 43m
EVA Air
Mon 3/911:20 am
BKK
- STL
2 stops38h 31m
EVA Air
Deal found 2/23![EVA Air logo]()
$1,016
This oojo deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/72:47 pm
STL
- BKK
2 stops36h 43m
STARLUX Airlines
Tue 3/101:45 pm
BKK
- STL
2 stops36h 06m
STARLUX Airlines
Deal found 2/21![STARLUX Airlines logo]()
$1,022
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/85:55 pm
STL
- BKK
3 stops29h 30m
United Airlines
Sun 5/179:35 am
BKK
- STL
2 stops47h 33m
United Airlines
Deal found 2/21![United Airlines logo]()
$975
This Gurufare deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/85:55 pm
STL
- BKK
2 stops29h 30m
Multiple Airlines
Sun 5/173:45 pm
BKK
- STL
2 stops50h 02m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$1,013
This oojo deal was found by Cheapflights users on 2/24. 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.
Tue 3/107:00 am
STL
- BKK
2 stops45h 30m
STARLUX Airlines
Fri 3/131:45 pm
BKK
- STL
2 stops22h 14m
STARLUX Airlines
Deal found 2/24![STARLUX Airlines logo]()
$974
This China Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/219:35 pm
STL
- BKK
2 stops51h 30m
Multiple Airlines
Thu 5/282:40 am
BKK
- STL
2 stops30h 25m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$1,019
This oojo deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/227:00 am
STL
- BKK
2 stops45h 30m
STARLUX Airlines
Sun 5/315:50 pm
BKK
- STL
2 stops57h 26m
STARLUX Airlines
Deal found 2/21![STARLUX Airlines logo]()
$969
This Etihad Airways deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/237:05 am
STL
- BKK
2 stops28h 20m
Multiple Airlines
Thu 5/283:05 pm
BKK
- STL
2 stops38h 15m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$955
This oojo deal was found by Cheapflights users on 2/23. 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.
Mon 3/237:00 am
STL
- BKK
2 stops45h 45m
China Airlines
Wed 4/222:40 am
BKK
- STL
2 stops57h 19m
China Airlines
Deal found 2/23![China Airlines logo]()
$999
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 February 25, 2026.
Search for one-way flight options from St. Louis to Thailand. Find affordable one-way fares based on user searches. Data last updated February 25, 2026.
This Gurufare deal was found by Cheapflights users on 2/23. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/37:00 am
STL
- BKK
2 stops40h 00m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$411
This Gurufare deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:00 am
STL
- BKK
2 stops41h 10m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:19 pm
STL
- BKK
3 stops50h 21m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$446
This Gurufare deal was found by Cheapflights users on 2/23. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:56 pm
STL
- BKK
2 stops32h 44m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$450
This oojo deal was found by Cheapflights users on 2/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/143:50 pm
STL
- BKK
2 stops36h 50m
STARLUX Airlines
Deal found 2/22![STARLUX Airlines logo]()
$494
This Cathay Pacific deal was found by Cheapflights users on 2/23. 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 4/510:33 am
STL
- HKT
2 stops36h 17m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$494
This oojo deal was found by Cheapflights users on 2/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/128:54 am
STL
- BKK
2 stops37h 06m
Cathay Pacific
Deal found 2/22![Cathay Pacific logo]()
$517
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1211:33 am
STL
- BKK
3 stops59h 42m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$518
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Tue 4/148:30 am
STL
- BKK
2 stops37h 05m
United Airlines
Deal found 2/22![United Airlines logo]()
$519
This FlightHub deal was found by Cheapflights users on 2/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/128:54 am
STL
- BKK
2 stops45h 26m
Qatar Airways
Deal found 2/22![Qatar Airways logo]()
$548
This Kiwi.com deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:32 pm
STL
- CNX
3 stops34h 23m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$555
This Kiwi.com deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:32 pm
STL
- CNX
3 stops50h 18m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$598
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 February 25, 2026.
Round-trip from | $879 (Gurufare) |
|---|---|
One-way from | $411 (Gurufare) |
Popular in | December |
Cheapest in | January |
Average price | $1,106 |
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 February 25, 2026.
Use the filters below to find and compare flights from St. Louis to Thailand that are best for you.
Fly from
Fly to
Route
Depart
Return
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Wed 4/15
8:35 am-10:20 am
2 stops37h 45m
Chiang Mai
Wed 4/29
11:20 am-11:15 pm
2 stops23h 55m
$1,087
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 4/13
7:00 am-9:45 am
2 stops38h 45m
Bangkok Suvarnabhumi
Mon 4/20
1:20 pm-2:50 pm
3 stops37h 30m
$1,090
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Tue 4/7
8:54 am-9:35 am
3 stops36h 41m
Bangkok Suvarnabhumi
Tue 4/14
3:45 pm-12:22 pm
3 stops32h 37m
$1,100
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 4/8
8:35 am-4:20 pm
2 stops43h 45m
Bangkok Suvarnabhumi
Tue 4/21
1:20 pm-2:50 pm
3 stops37h 30m
$1,112
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Thu 5/7
8:30 am-10:20 am
2 stops37h 50m
Chiang Mai
Wed 5/13
11:20 am-11:15 pm
2 stops23h 55m
$1,113
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sat 3/21
9:00 am-11:25 am
3 stops62h 25m
Bangkok Suvarnabhumi
Sun 5/31
3:45 pm-3:46 pm
3 stops60h 01m
$1,129
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Tue 4/7
3:50 pm-10:20 am
2 stops30h 30m
Chiang Mai
Tue 4/14
11:20 am-2:51 pm
2 stops39h 31m
$1,132
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sat 3/7
7:41 am-11:25 am
3 stops38h 44m
Bangkok Suvarnabhumi
Tue 3/10
4:55 pm-12:27 pm
3 stops31h 32m
$1,162
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 3/23
7:00 am-9:50 am
2 stops38h 50m
Bangkok Suvarnabhumi
Mon 4/6
10:50 am-2:50 pm
3 stops40h 00m
$1,179
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 3/23
2:50 pm-11:25 am
3 stops32h 35m
Bangkok Suvarnabhumi
Mon 4/13
3:45 pm-8:25 am
3 stops28h 40m
$1,180
Showing 1-10 of 39 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, January is the cheapest month in which you can book a flight from St. Louis to Thailand (average of $897). Flying from St. Louis to Thailand in June is currently the most expensive (average of $1,227). 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.
What is the cheapest time of day to fly from STL to TH?
Find hourly flight availability from St. Louis to Thailand. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 25, 2026.
When flying from St. Louis to Thailand, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 62% versus a flight at noon.
What is the cheapest day to fly from St. Louis to Thailand?
Use this chart to determine the cheapest time to fly round-trip from St. Louis to Thailand. Price data was last updated on March 30, 2025.
Travelers seeking maximum savings on their St. Louis to Thailand flight should consider departing on Monday at noon when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 February 25, 2026.
See what other customers who have flown with ANA, Japan Airlines, and Delta from St. Louis to Thailand have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.7
Overall
8.4
Comfort
8.2
Entertainment
7.9
Boarding
8.5
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Crew
8.7
Overall
8.4
Comfort
8.2
Entertainment
7.9
Boarding
8.5
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Crew
8.7
Overall
8.4
Comfort
8.2
Entertainment
7.9
Boarding
8.5
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Crew
8.7
Overall
8.4
Comfort
8.2
Entertainment
7.9
Boarding
8.5
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Crew
8.7
Overall
8.4
Comfort
8.2
Entertainment
7.9
Boarding
8.5
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Crew
8.7
Overall
8.4
Comfort
8.2
Entertainment
7.9
Boarding
8.5
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
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
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Thailand by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Thailand by cabin class
Find flights from St. Louis to Thailand, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Thailand flights
Browse other St. Louis and Thailand flight options. Last updated on February 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Thailand regions
Consider these flights traveling to Thailand regions.
Top 9 airlines flying from St. Louis to Thailand
Discover the top 9 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 February 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$881 | Average$1,278 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$927 | Average$1,235 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$929 | Average$1,085 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$954 | Average$1,278 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$983 | Average$1,249 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,007 | Average$1,246 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,017 | Average$1,326 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,280 | Average$1,806 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,289 | Average$1,634 | FlexibilityNo cancel fee | On-time76% |