$480+ 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Aug 29 — Sep 51
Round-trip
1 adult, Economy
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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 30, 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 30, 2026.
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:29 pm
STL
- BKK
2 stops37h 21m
Multiple Airlines
Mon 10/1912:25 pm
BKK
- STL
2 stops44h 44m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$982
This Air Canada deal was found by Cheapflights users on 7/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:30 am
STL
- BKK
2 stops31h 35m
Air Canada
Wed 8/267:05 am
BKK
- STL
2 stops47h 37m
Air Canada
Deal found 7/25![Air Canada logo]()
$1,024
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:50 pm
STL
- BKK
2 stops32h 00m
Multiple Airlines
Sun 11/1512:15 pm
BKK
- STL
2 stops46h 25m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,035
This Etihad Airways deal was found by Cheapflights users on 7/29. 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.
Thu 9/1011:01 am
STL
- BKK
2 stops37h 09m
Multiple Airlines
Wed 9/163:15 am
BKK
- STL
2 stops33h 12m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,037
This Etihad Airways deal was found by Cheapflights users on 7/25. 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.
Tue 9/86:54 am
STL
- HKT
2 stops28h 56m
Multiple Airlines
Mon 9/143:20 am
HKT
- STL
2 stops33h 07m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,067
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/153:40 pm
STL
- BKK
2 stops41h 30m
Multiple Airlines
Wed 12/212:15 pm
BKK
- STL
2 stops45h 58m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,082
This Air Canada deal was found by Cheapflights users on 7/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1912:10 pm
STL
- BKK
2 stops28h 55m
Air Canada
Fri 9/47:00 am
BKK
- STL
2 stops47h 42m
Air Canada
Deal found 7/26![Air Canada logo]()
$1,091
This Etihad Airways deal was found by Cheapflights users on 7/28. 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.
Sat 10/179:45 am
STL
- BKK
2 stops26h 10m
Multiple Airlines
Sun 10/258:50 pm
BKK
- STL
2 stops36h 18m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,094
This Ovago deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:27 pm
STL
- HKT
2 stops24h 48m
Etihad Airways
Tue 11/172:40 am
HKT
- STL
2 stops29h 42m
Etihad Airways
Deal found 7/27![Etihad Airways logo]()
$1,095
This Etihad Airways deal was found by Cheapflights users on 7/27. 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 8/199:32 am
STL
- BKK
2 stops26h 23m
Multiple Airlines
Wed 8/263:55 pm
BKK
- STL
2 stops39h 04m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,097
This Justfly.com deal was found by Cheapflights users on 7/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:55 am
STL
- BKK
2 stops26h 40m
Air Canada
Fri 9/47:00 am
BKK
- STL
2 stops47h 42m
Air Canada
Deal found 7/27![Air Canada logo]()
$1,102
This Travelocity deal was found by Cheapflights users on 7/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:00 am
STL
- BKK
2 stops39h 15m
Multiple Airlines
Sun 12/611:55 pm
BKK
- STL
2 stops37h 04m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,129
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 30, 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 30, 2026.
This Etihad Airways deal was found by Cheapflights users on 7/28. 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.
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 7/28![Multiple Airlines logo]()
$1,037
This Ovago deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:27 pm
STL
- HKT
2 stops24h 48m
Etihad Airways
Tue 11/172:40 am
HKT
- STL
2 stops29h 42m
Etihad Airways
Deal found 7/27![Etihad Airways logo]()
$1,095
This Qatar Airways deal was found by Cheapflights users on 7/29. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:26 am
STL
- BKK
2 stops34h 54m
Qatar Airways
Sat 9/123:00 am
BKK
- STL
2 stops33h 27m
Qatar Airways
Deal found 7/29![Qatar Airways logo]()
$1,305
This Etihad Airways deal was found by Cheapflights users on 7/25. 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.
Thu 9/1011:01 am
STL
- BKK
2 stops37h 09m
Multiple Airlines
Thu 9/179:00 pm
BKK
- STL
2 stops32h 30m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,037
This Etihad Airways deal was found by Cheapflights users on 7/25. 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.
Tue 9/810:22 am
STL
- BKK
2 stops25h 33m
Multiple Airlines
Tue 9/159:00 pm
BKK
- STL
2 stops32h 30m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,037
This Etihad Airways deal was found by Cheapflights users on 7/28. 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 8/206:00 am
STL
- BKK
2 stops29h 55m
Multiple Airlines
Wed 11/182:40 pm
BKK
- STL
2 stops41h 45m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,037
This Qatar Airways deal was found by Cheapflights users on 7/26. 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.
Thu 10/157:02 am
STL
- HKT
2 stops36h 43m
Qatar Airways
Mon 10/199:20 am
HKT
- STL
2 stops50h 39m
Qatar Airways
Deal found 7/26![Qatar Airways logo]()
$1,340
This Etihad Airways deal was found by Cheapflights users on 7/28. 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.
Sun 11/17:24 am
STL
- BKK
2 stops34h 11m
Multiple Airlines
Sun 11/82:40 pm
BKK
- STL
2 stops39h 03m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,037
This Qatar Airways deal was found by Cheapflights users on 7/29. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:29 am
STL
- HKT
2 stops37h 16m
Qatar Airways
Sun 9/139:35 pm
HKT
- STL
2 stops38h 24m
Qatar Airways
Deal found 7/29![Qatar Airways logo]()
$1,377
This Etihad Airways deal was found by Cheapflights users on 7/29. 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 9/207:27 am
STL
- HKT
2 stops28h 23m
Multiple Airlines
Sun 9/279:20 pm
HKT
- STL
2 stops39h 07m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,067
This Etihad Airways deal was found by Cheapflights users on 7/25. 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.
Tue 9/86:54 am
STL
- HKT
2 stops28h 56m
Multiple Airlines
Mon 9/143:20 am
HKT
- STL
2 stops33h 07m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,067
This China Airlines deal was found by Cheapflights users on 7/29. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:30 am
STL
- BKK
2 stops44h 15m
Multiple Airlines
Tue 11/35:50 pm
BKK
- STL
2 stops41h 10m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,188
This China Airlines deal was found by Cheapflights users on 7/30. 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 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 7/30![Multiple Airlines logo]()
$1,190
This Expedia deal was found by Cheapflights users on 7/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:00 am
STL
- HKT
2 stops49h 35m
Multiple Airlines
Thu 11/2611:40 pm
HKT
- STL
2 stops37h 19m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,210
This China Airlines deal was found by Cheapflights users on 7/30. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/246:55 pm
STL
- BKK
2 stops25h 55m
Multiple Airlines
Sun 2/142:05 pm
BKK
- STL
2 stops37h 21m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,232
This FlightHub deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/44:32 pm
STL
- CNX
2 stops28h 53m
Multiple Airlines
Thu 1/2111:25 am
CNX
- STL
2 stops40h 01m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$1,255
This China Airlines deal was found by Cheapflights users on 7/27. 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 China Airlines 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 24m
Multiple Airlines
Sat 8/2210:50 am
BKK
- STL
2 stops37h 30m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,303
This Etihad Airways deal was found by Cheapflights users on 7/30. 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.
Wed 10/711:31 am
STL
- HKT
2 stops31h 09m
Multiple Airlines
Sat 10/179:20 pm
HKT
- STL
2 stops35h 48m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,307
This KAYAK deal was found by Cheapflights users on 7/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/123:24 pm
STL
- CNX
2 stops30h 11m
Multiple Airlines
Thu 1/282:05 pm
CNX
- STL
3 stops37h 21m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,347
This KAYAK deal was found by Cheapflights users on 7/28. 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 12/13:24 pm
STL
- CNX
2 stops30h 11m
Multiple Airlines
Fri 12/42:05 pm
CNX
- STL
3 stops37h 21m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,442
This EVA Air deal was found by Cheapflights users on 7/27. 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 EVA Air 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 8/2411:35 am
CNX
- STL
2 stops36h 50m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,468
This Cathay Pacific deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:10 pm
STL
- HKT
3 stops35h 20m
Multiple Airlines
Sat 10/1711:50 am
HKT
- STL
2 stops47h 56m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$1,503
Last-minute flights from St. Louis to ThailandDiscover last-minute flight deals from St. Louis to Thailand. Data last updated July 30, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Thailand. Data last updated July 30, 2026 and is based on user searches.
This BusinessClass deal was found by Cheapflights users on 7/25. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/113:25 pm
STL
- HKT
2 stops44h 25m
Etihad Airways
Sun 8/1612:55 am
HKT
- STL
2 stops51h 55m
Etihad Airways
Deal found 7/25![Etihad Airways logo]()
$1,203
This China Airlines deal was found by Cheapflights users on 7/29. 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 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 7/29![Multiple Airlines logo]()
$1,171
This Air Canada deal was found by Cheapflights users on 7/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:30 am
STL
- BKK
2 stops31h 35m
Air Canada
Wed 8/267:05 am
BKK
- STL
2 stops47h 37m
Air Canada
Deal found 7/25![Air Canada logo]()
$1,024
This Air Canada deal was found by Cheapflights users on 7/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1912:10 pm
STL
- BKK
2 stops28h 55m
Air Canada
Fri 9/47:00 am
BKK
- STL
2 stops47h 42m
Air Canada
Deal found 7/26![Air Canada logo]()
$1,091
This Etihad Airways deal was found by Cheapflights users on 7/27. 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 8/199:32 am
STL
- BKK
2 stops26h 23m
Multiple Airlines
Wed 8/263:55 pm
BKK
- STL
2 stops39h 04m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,097
This Etihad Airways deal was found by Cheapflights users on 7/28. 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 8/206:00 am
STL
- BKK
2 stops29h 55m
Multiple Airlines
Wed 11/182:40 pm
BKK
- STL
2 stops41h 45m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,037
This Justfly.com deal was found by Cheapflights users on 7/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:55 am
STL
- BKK
2 stops26h 40m
Air Canada
Fri 9/47:00 am
BKK
- STL
2 stops47h 42m
Air Canada
Deal found 7/27![Air Canada logo]()
$1,102
This BusinessClass deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:00 am
STL
- HKT
2 stops48h 20m
Etihad Airways
Fri 8/283:20 am
HKT
- STL
2 stops29h 39m
Etihad Airways
Deal found 7/26![Etihad Airways logo]()
$1,215
This EVA Air deal was found by Cheapflights users on 7/27. 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 EVA Air 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 8/2411:35 am
CNX
- STL
2 stops36h 50m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,468
This FlightHub deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/243:04 pm
STL
- CNX
2 stops31h 21m
Multiple Airlines
Mon 8/3111:35 am
CNX
- STL
2 stops38h 29m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,276
This Ovago deal was found by Cheapflights users on 7/25. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/254:54 pm
STL
- HKT
2 stops25h 46m
Etihad Airways
Mon 8/313:20 am
HKT
- STL
2 stops28h 10m
Etihad Airways
Deal found 7/25![Etihad Airways logo]()
$1,157
This Cathay Pacific deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:00 am
STL
- HKT
2 stops40h 50m
Multiple Airlines
Tue 9/17:35 am
HKT
- STL
3 stops28h 07m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,503
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 30, 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 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/131:02 pm
STL
- BKK
3 stops34h 58m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$480
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:27 pm
STL
- BKK
2 stops29h 23m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$513
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:29 pm
STL
- BKK
2 stops28h 06m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$517
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Sat 10/1010:35 am
STL
- BKK
3 stops59h 50m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$544
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:17 pm
STL
- BKK
2 stops48h 28m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$552
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/110:35 am
STL
- BKK
2 stops31h 00m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$555
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:35 am
STL
- BKK
2 stops32h 10m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$561
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Sun 11/110:35 am
STL
- HKT
3 stops48h 15m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$580
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 30, 2026.
Round-trip from | $1,024 (Air Canada) |
|---|---|
One-way from | $480 (Kiwi.com) |
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 30, 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
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
$1,037
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Thu 9/10
11:01 am-12:10 pm
2 stops37h 09m
Bangkok Suvarnabhumi
Thu 9/17
9:00 pm-5:30 pm
2 stops32h 30m
$1,037
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Tue 9/8
10:22 am-11:55 pm
2 stops25h 33m
Bangkok Suvarnabhumi
Tue 9/15
9:00 pm-5:30 pm
2 stops32h 30m
$1,037
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Thu 8/20
6:00 am-11:55 pm
2 stops29h 55m
Bangkok Suvarnabhumi
Wed 11/18
2:40 pm-7:25 pm
2 stops41h 45m
$1,037
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sun 11/1
7:24 am-6:35 am
2 stops34h 11m
Bangkok Suvarnabhumi
Sun 11/8
2:40 pm-4:43 pm
2 stops39h 03m
$1,037
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Sun 9/20
7:27 am-11:50 pm
2 stops28h 23m
Phuket City
Sun 9/27
9:20 pm-12:27 am
2 stops39h 07m
$1,067
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Tue 9/8
6:54 am-11:50 pm
2 stops28h 56m
Phuket City
Mon 9/14
3:20 am-12:27 am
2 stops33h 07m
$1,067
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Wed 10/28
5:27 pm-6:15 am
2 stops24h 48m
Phuket City
Tue 11/17
2:40 am-7:22 pm
2 stops29h 42m
$1,095
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Fri 10/23
8:30 am-4:45 pm
2 stops44h 15m
Bangkok Suvarnabhumi
Tue 11/3
5:50 pm-10:00 pm
2 stops41h 10m
$1,188
Quickest round-trip
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
$1,190
Showing 1-10 of 31 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 $1,039). Flying from St. Louis to Thailand in December is currently the most expensive (average of $1,658). 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 30, 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.
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Crew
8.7
Food
7.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Crew
8.7
Food
7.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Crew
8.7
Food
7.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Crew
8.7
Food
7.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Crew
8.7
Food
7.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Crew
8.7
Food
7.7
Overall
8.3
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
Complete your trip to Thailand by adding a car rental and/or hotel reservation to your travel itinerary.
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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 July 30, 2026.
Popular flight searches
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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 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$881 | Average$1,259 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$927 | Average$1,235 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$929 | Average$1,220 | 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$1,233 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,007 | Average$1,391 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,048 | Average$1,456 | FlexibilityNo cancel fee | On-time74% |