$459+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Apr 2 — Apr 91
1 adult, Economy
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Find cheap flights from St. Louis to Thailand with Cheapflights
1. Tell us where you want to go
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 March 3, 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 March 3, 2026.
This oojo deal was found by Cheapflights users on 3/3. 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 9/93:24 pm
STL
- BKK
2 stops29h 31m
Philippine Airlines
Wed 9/2310:20 am
BKK
- STL
2 stops40h 06m
Philippine Airlines
Deal found 3/3![Philippine Airlines logo]()
$827
This SmartFares deal was found by Cheapflights users on 3/3. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:24 pm
STL
- BKK
2 stops29h 31m
Multiple Airlines
Wed 9/301:25 pm
BKK
- STL
2 stops37h 01m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$832
This Orbitz deal was found by Cheapflights users on 3/3. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:24 pm
STL
- BKK
2 stops32h 46m
Multiple Airlines
Wed 10/141:25 pm
BKK
- STL
2 stops37h 01m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$847
This BusinessClass deal was found by Cheapflights users on 2/28. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:35 am
STL
- BKK
2 stops27h 35m
Cathay Pacific
Wed 9/307:35 am
BKK
- STL
2 stops26h 50m
Cathay Pacific
Deal found 2/28![Cathay Pacific logo]()
$894
This oojo deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:32 pm
STL
- BKK
2 stops28h 28m
STARLUX Airlines
Mon 9/281:10 pm
BKK
- STL
2 stops37h 16m
STARLUX Airlines
Deal found 2/28![STARLUX Airlines logo]()
$898
This KAYAK deal was found by Cheapflights users on 3/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:35 am
STL
- BKK
2 stops27h 35m
Cathay Pacific
Wed 9/307:35 am
BKK
- STL
2 stops26h 50m
Cathay Pacific
Deal found 3/3![Cathay Pacific logo]()
$907
This oojo deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/44:14 pm
STL
- BKK
2 stops29h 46m
Cathay Pacific
Tue 10/207:10 pm
BKK
- STL
2 stops41h 02m
Cathay Pacific
Deal found 2/27![Cathay Pacific logo]()
$908
This oojo deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:56 pm
STL
- BKK
2 stops32h 44m
STARLUX Airlines
Mon 8/311:10 pm
BKK
- STL
2 stops37h 16m
STARLUX Airlines
Deal found 2/28![STARLUX Airlines logo]()
$917
This KAYAK deal was found by Cheapflights users on 3/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:35 am
STL
- BKK
2 stops27h 35m
Cathay Pacific
Thu 10/17:10 pm
BKK
- STL
2 stops34h 52m
Cathay Pacific
Deal found 3/3![Cathay Pacific logo]()
$938
This FlightHub deal was found by Cheapflights users on 3/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:45 pm
STL
- BKK
2 stops27h 45m
Cathay Pacific
Tue 9/297:10 pm
BKK
- STL
2 stops39h 15m
Cathay Pacific
Deal found 3/3![Cathay Pacific logo]()
$939
This oojo deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:00 am
STL
- BKK
2 stops44h 30m
STARLUX Airlines
Mon 3/91:45 pm
BKK
- STL
2 stops22h 14m
STARLUX Airlines
Deal found 2/27![STARLUX Airlines logo]()
$955
This Etihad Airways deal was found by Cheapflights users on 3/2. 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.
Wed 4/87:00 am
STL
- BKK
2 stops35h 45m
Multiple Airlines
Tue 4/213:05 pm
BKK
- STL
2 stops34h 17m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$956
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 March 3, 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 March 3, 2026.
This United Airlines deal was found by Cheapflights users on 3/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/132:40 pm
STL
- BKK
3 stops30h 55m
United Airlines
Mon 4/209:35 am
BKK
- STL
2 stops47h 38m
United Airlines
Deal found 3/2![United Airlines logo]()
$1,039
This oojo deal was found by Cheapflights users on 2/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:00 am
STL
- CNX
2 stops39h 20m
China Airlines
Tue 6/211:20 am
CNX
- STL
2 stops43h 25m
China Airlines
Deal found 2/26![China Airlines logo]()
$1,053
This China Airlines deal was found by Cheapflights users on 2/28. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/178:25 am
STL
- BKK
3 stops37h 25m
Multiple Airlines
Thu 4/162:40 am
BKK
- STL
2 stops33h 50m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$1,075
This oojo deal was found by Cheapflights users on 3/2. 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 5/47:00 am
STL
- CNX
2 stops39h 25m
EVA Air
Tue 6/211:35 am
CNX
- STL
2 stops43h 10m
EVA Air
Deal found 3/2![EVA Air logo]()
$1,089
This Qatar Airways deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:45 am
STL
- CNX
3 stops35h 30m
Qatar Airways
Thu 5/148:00 pm
CNX
- STL
3 stops35h 33m
Qatar Airways
Deal found 2/27![Qatar Airways logo]()
$1,307
This KAYAK deal was found by Cheapflights users on 3/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:50 pm
STL
- HKT
2 stops34h 45m
Cathay Pacific
Wed 3/256:35 pm
HKT
- STL
2 stops40h 23m
Cathay Pacific
Deal found 3/3![Cathay Pacific logo]()
$1,613
This United Airlines deal was found by Cheapflights users on 3/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:55 pm
STL
- BKK
3 stops29h 30m
United Airlines
Mon 5/189:35 am
BKK
- STL
2 stops49h 44m
United Airlines
Deal found 3/2![United Airlines logo]()
$1,039
This SmartFares deal was found by Cheapflights users on 2/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:00 am
STL
- CNX
2 stops39h 20m
Multiple Airlines
Tue 4/2111:20 am
CNX
- STL
2 stops40h 30m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$1,085
This United Airlines deal was found by Cheapflights users on 3/1. 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 4/810:09 am
STL
- BKK
3 stops35h 26m
United Airlines
Tue 4/283:45 pm
BKK
- STL
3 stops28h 40m
United Airlines
Deal found 3/1![United Airlines logo]()
$1,075
This Gurufare deal was found by Cheapflights users on 3/2. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:00 am
STL
- CNX
2 stops45h 20m
Multiple Airlines
Thu 5/145:20 pm
CNX
- STL
2 stops57h 56m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$1,090
This China Airlines deal was found by Cheapflights users on 2/27. 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.
Wed 4/88:35 am
STL
- BKK
2 stops39h 35m
Multiple Airlines
Tue 4/285:30 pm
BKK
- STL
3 stops33h 20m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$1,100
This China Airlines deal was found by Cheapflights users on 3/2. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/152:05 pm
STL
- CNX
2 stops32h 15m
Multiple Airlines
Wed 4/2911:20 am
CNX
- STL
2 stops23h 55m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$1,107
This Qatar Airways deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:36 am
STL
- HKT
2 stops37h 09m
Qatar Airways
Tue 6/29:20 am
HKT
- STL
2 stops46h 01m
Qatar Airways
Deal found 2/28![Qatar Airways logo]()
$1,623
This China Airlines deal was found by Cheapflights users on 2/26. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:00 am
STL
- CNX
2 stops39h 20m
Multiple Airlines
Tue 6/211:20 am
CNX
- STL
3 stops39h 30m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$1,115
This United Airlines deal was found by Cheapflights users on 3/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/222:50 pm
STL
- BKK
3 stops32h 35m
United Airlines
Thu 4/23:45 pm
BKK
- STL
3 stops32h 37m
United Airlines
Deal found 3/2![United Airlines logo]()
$1,370
This BusinessClass deal was found by Cheapflights users on 2/28. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:50 pm
STL
- HKT
2 stops34h 30m
Cathay Pacific
Thu 4/302:45 pm
HKT
- STL
3 stops44h 14m
Cathay Pacific
Deal found 2/28![Cathay Pacific logo]()
$1,690
This FlightHub deal was found by Cheapflights users on 2/27. 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.
Wed 4/12:29 pm
STL
- HKT
2 stops29h 16m
Qatar Airways
Thu 4/309:20 am
HKT
- STL
2 stops50h 39m
Qatar Airways
Deal found 2/27![Qatar Airways logo]()
$1,641
This China Airlines deal was found by Cheapflights users on 2/27. 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.
Mon 4/138:30 am
STL
- BKK
2 stops39h 40m
Multiple Airlines
Mon 4/2010:50 am
BKK
- STL
3 stops40h 00m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$1,132
This Etihad Airways deal was found by Cheapflights users on 3/1. 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.
Mon 3/237:05 am
STL
- BKK
2 stops28h 20m
Multiple Airlines
Thu 4/23:15 am
BKK
- STL
2 stops30h 21m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$1,217
This Cathay Pacific deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:11 pm
STL
- HKT
2 stops28h 39m
Multiple Airlines
Mon 4/206:20 pm
HKT
- STL
2 stops41h 37m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$1,227
This EVA Air deal was found by Cheapflights users on 2/28. 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 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 4/3012:55 pm
HKT
- STL
3 stops28h 52m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$1,406
This Korean Air deal was found by Cheapflights users on 3/1. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:29 am
STL
- HKT
2 stops27h 41m
Multiple Airlines
Wed 3/2511:40 pm
HKT
- STL
2 stops36h 18m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$1,499
This EVA Air deal was found by Cheapflights users on 3/2. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:05 pm
STL
- HKT
3 stops31h 00m
Multiple Airlines
Thu 4/2312:55 pm
HKT
- STL
3 stops28h 55m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$1,804
Last-minute flights from St. Louis to ThailandDiscover last-minute flight deals from St. Louis to Thailand. Data last updated March 3, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Thailand. Data last updated March 3, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/88:00 am
STL
- BKK
2 stops38h 40m
Cathay Pacific
Fri 5/1511:00 am
BKK
- STL
2 stops23h 59m
Cathay Pacific
Deal found 2/27![Cathay Pacific logo]()
$958
This oojo deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/88:00 am
STL
- BKK
2 stops38h 40m
Cathay Pacific
Sat 5/163:00 pm
BKK
- STL
2 stops43h 59m
Cathay Pacific
Deal found 2/28![Cathay Pacific logo]()
$983
This oojo deal was found by Cheapflights users on 3/1. 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.
Sun 3/87:00 am
STL
- BKK
2 stops41h 35m
STARLUX Airlines
Sun 5/175:50 pm
BKK
- STL
2 stops57h 26m
STARLUX Airlines
Deal found 3/1![STARLUX Airlines logo]()
$993
This oojo deal was found by Cheapflights users on 3/1. 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.
Sun 3/87:00 am
STL
- BKK
2 stops41h 35m
STARLUX Airlines
Fri 3/131:45 pm
BKK
- STL
2 stops22h 14m
STARLUX Airlines
Deal found 3/1![STARLUX Airlines logo]()
$1,004
This SmartFares deal was found by Cheapflights users on 2/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/87:00 am
STL
- BKK
2 stops41h 35m
Multiple Airlines
Sun 6/75:50 pm
BKK
- STL
2 stops57h 26m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$1,007
This China Airlines deal was found by Cheapflights users on 2/27. 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.
Sun 3/810:15 am
STL
- BKK
2 stops35h 35m
Multiple Airlines
Sat 5/165:30 pm
BKK
- STL
2 stops43h 45m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$1,012
This Etihad Airways deal was found by Cheapflights users on 3/3. 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.
Tue 3/2411:59 am
STL
- BKK
2 stops23h 26m
Multiple Airlines
Thu 4/29:00 pm
BKK
- STL
2 stops34h 30m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$977
This Etihad Airways deal was found by Cheapflights users on 3/2. 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.
Wed 4/87:00 am
STL
- BKK
2 stops35h 45m
Multiple Airlines
Tue 4/213:05 pm
BKK
- STL
2 stops34h 17m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$956
This oojo deal was found by Cheapflights users on 3/1. 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 4/87:00 am
STL
- BKK
2 stops41h 00m
STARLUX Airlines
Tue 4/281:10 pm
BKK
- STL
2 stops38h 40m
STARLUX Airlines
Deal found 3/1![STARLUX Airlines logo]()
$969
This oojo deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/812:25 pm
STL
- BKK
2 stops33h 35m
Cathay Pacific
Tue 4/217:35 am
BKK
- STL
2 stops28h 22m
Cathay Pacific
Deal found 2/28![Cathay Pacific logo]()
$998
This oojo deal was found by Cheapflights users on 3/2. 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 4/138:03 pm
STL
- BKK
2 stops49h 57m
Cathay Pacific
Mon 4/207:10 pm
BKK
- STL
2 stops40h 47m
Cathay Pacific
Deal found 3/2![Cathay Pacific logo]()
$989
This flugladen.de deal was found by Cheapflights users on 2/28. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:00 am
STL
- BKK
2 stops29h 10m
Multiple Airlines
Thu 4/307:35 am
BKK
- STL
2 stops28h 24m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$966
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 March 3, 2026.
Search for one-way flight options from St. Louis to Thailand. Find affordable one-way fares based on user searches. Data last updated March 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/43:21 pm
STL
- BKK
3 stops44h 49m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$459
This Gurufare deal was found by Cheapflights users on 2/27. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/143:50 pm
STL
- BKK
2 stops32h 10m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$464
This KAYAK deal was found by Cheapflights users on 3/1. 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.
Tue 4/1412:27 pm
STL
- BKK
2 stops33h 33m
Cathay Pacific
Deal found 3/1![Cathay Pacific logo]()
$478
This SmartFares deal was found by Cheapflights users on 3/1. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:00 am
STL
- BKK
2 stops45h 40m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/197:00 pm
STL
- BKK
3 stops57h 10m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$562
This United Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:09 am
STL
- BKK
3 stops35h 26m
United Airlines
Deal found 2/27![United Airlines logo]()
$574
This FlightHub deal was found by Cheapflights users on 3/1. 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.
Thu 3/197:00 am
STL
- BKK
2 stops47h 25m
Qatar Airways
Deal found 3/1![Qatar Airways logo]()
$606
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/242:17 pm
STL
- BKK
3 stops42h 53m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$621
This SmartFares deal was found by Cheapflights users on 2/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/285:30 pm
STL
- HKT
2 stops64h 40m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$677
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 March 3, 2026.
Round-trip from | $917 (oojo) |
|---|---|
One-way from | $459 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $1,271 |
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 March 3, 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. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 4/13
2:40 pm-9:35 am
3 stops30h 55m
Bangkok Suvarnabhumi
Mon 4/20
9:35 am-9:13 pm
2 stops47h 38m
$1,039
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 3/23
5:55 pm-11:25 am
3 stops29h 30m
Bangkok Suvarnabhumi
Mon 5/18
9:35 am-11:19 pm
2 stops49h 44m
$1,039
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Mon 5/4
7:00 am-10:20 am
2 stops39h 20m
Chiang Mai
Tue 6/2
11:20 am-6:45 pm
2 stops43h 25m
$1,053
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Tue 3/17
8:25 am-9:50 am
3 stops37h 25m
Bangkok Suvarnabhumi
Thu 4/16
2:40 am-12:30 am
2 stops33h 50m
$1,075
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 4/8
10:09 am-9:35 am
3 stops35h 26m
Bangkok Suvarnabhumi
Tue 4/28
3:45 pm-8:25 am
3 stops28h 40m
$1,075
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Tue 4/14
7:00 am-10:20 am
2 stops39h 20m
Chiang Mai
Tue 4/21
11:20 am-3:50 pm
2 stops40h 30m
$1,085
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Mon 5/4
7:00 am-10:25 am
2 stops39h 25m
Chiang Mai
Tue 6/2
11:35 am-6:45 pm
2 stops43h 10m
$1,089
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Tue 5/5
7:00 am-4:20 pm
2 stops45h 20m
Chiang Mai
Thu 5/14
5:20 pm-3:16 pm
2 stops57h 56m
$1,090
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 4/8
8:35 am-12:10 pm
2 stops39h 35m
Bangkok Suvarnabhumi
Tue 4/28
5:30 pm-2:50 pm
3 stops33h 20m
$1,100
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Wed 4/15
2:05 pm-10:20 am
2 stops32h 15m
Chiang Mai
Wed 4/29
11:20 am-11:15 pm
2 stops23h 55m
$1,107
Showing 1-10 of 29 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Thailand
Have a flexible travel schedule? Discover the best time to fly to Thailand from St. Louis with our price prediction graph.
STL-BKK
STL-CNX
STL-HKT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Thailand
STL-TH0
STL-BKK
STL-CNX
STL-HKT
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 March 3, 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 March 3, 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
Boarding
8.5
Entertainment
7.9
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Crew
8.7
Overall
8.4
Comfort
8.2
Boarding
8.5
Entertainment
7.9
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Crew
8.7
Overall
8.4
Comfort
8.2
Boarding
8.5
Entertainment
7.9
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Crew
8.7
Overall
8.4
Comfort
8.2
Boarding
8.5
Entertainment
7.9
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Crew
8.7
Overall
8.4
Comfort
8.2
Boarding
8.5
Entertainment
7.9
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Crew
8.7
Overall
8.4
Comfort
8.2
Boarding
8.5
Entertainment
7.9
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
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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 March 3, 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 7 airlines flying from St. Louis to Thailand
Discover the top 7 airlines that operate flights from St. Louis to Thailand. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$881 | Average$1,259 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$927 | Average$1,265 | 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$1,248 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,007 | Average$1,246 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,017 | Average$1,372 | FlexibilityNo cancel fee | On-time68% |