$535+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Jun 9 — Jun 161
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 May 10, 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 May 10, 2026.
This Fareboom deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:54 pm
STL
- BKK
2 stops28h 36m
Multiple Airlines
Tue 9/159:35 pm
BKK
- STL
2 stops27h 14m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$998
This oojo deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:23 am
STL
- BKK
2 stops30h 27m
Etihad Airways
Wed 11/182:40 pm
BKK
- STL
2 stops40h 14m
Etihad Airways
Deal found 5/5![Etihad Airways logo]()
$1,031
This Etihad Airways deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:22 am
STL
- BKK
2 stops32h 23m
Multiple Airlines
Fri 9/183:15 am
BKK
- STL
2 stops28h 48m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$1,038
This Etihad Airways deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 10/116:03 am
STL
- BKK
2 stops29h 47m
Multiple Airlines
Sun 10/188:45 pm
BKK
- STL
2 stops30h 45m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,040
This Etihad Airways deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 9/247:44 am
STL
- BKK
2 stops35h 01m
Multiple Airlines
Wed 10/79:00 pm
BKK
- STL
2 stops35h 08m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,044
This oojo deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:54 am
STL
- BKK
2 stops28h 56m
Etihad Airways
Thu 9/33:15 am
BKK
- STL
2 stops50h 19m
Etihad Airways
Deal found 5/7![Etihad Airways logo]()
$1,092
This Etihad Airways deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 10/119:47 am
STL
- BKK
2 stops32h 28m
Multiple Airlines
Sat 10/249:00 pm
BKK
- STL
2 stops35h 08m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$1,098
This Etihad Airways deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:02 am
STL
- BKK
2 stops29h 48m
Multiple Airlines
Thu 10/229:00 pm
BKK
- STL
2 stops30h 30m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,099
This Etihad Airways deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 8/151:25 pm
STL
- BKK
2 stops34h 25m
Multiple Airlines
Sat 8/293:15 am
BKK
- STL
2 stops32h 44m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$1,158
This Etihad Airways deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 7/279:24 am
STL
- BKK
2 stops33h 21m
Multiple Airlines
Wed 7/293:15 am
BKK
- STL
2 stops28h 06m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$1,159
This oojo deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 11/33:24 pm
STL
- CNX
2 stops35h 31m
STARLUX Airlines
Tue 11/174:55 pm
CNX
- STL
2 stops44h 04m
STARLUX Airlines
Deal found 5/9![STARLUX Airlines logo]()
$1,305
This KAYAK deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 11/33:24 pm
STL
- CNX
2 stops35h 31m
Multiple Airlines
Tue 11/174:55 pm
CNX
- STL
2 stops44h 04m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$1,318
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 May 10, 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 May 10, 2026.
This Etihad Airways deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/99:35 am
STL
- BKK
2 stops26h 15m
Multiple Airlines
Thu 10/223:15 am
BKK
- STL
2 stops28h 53m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,039
This oojo deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 11/33:24 pm
STL
- CNX
2 stops35h 31m
STARLUX Airlines
Tue 11/174:55 pm
CNX
- STL
2 stops44h 04m
STARLUX Airlines
Deal found 5/9![STARLUX Airlines logo]()
$1,305
This Qatar Airways deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:00 am
STL
- HKT
2 stops36h 45m
Qatar Airways
Fri 10/238:30 pm
HKT
- STL
2 stops39h 29m
Qatar Airways
Deal found 5/9![Qatar Airways logo]()
$1,339
This United Airlines deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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 7/1611:10 am
STL
- BKK
3 stops34h 25m
United Airlines
Wed 7/229:35 am
BKK
- STL
2 stops38h 36m
United Airlines
Deal found 5/6![United Airlines logo]()
$1,543
This BusinessClass deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 5/272:15 pm
STL
- HKT
2 stops32h 35m
Cathay Pacific
Tue 6/211:50 am
HKT
- STL
2 stops48h 06m
Cathay Pacific
Deal found 5/9![Cathay Pacific logo]()
$1,718
This Etihad Airways deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:38 am
STL
- BKK
2 stops28h 12m
Multiple Airlines
Thu 10/228:45 pm
BKK
- STL
2 stops30h 45m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$1,099
This Qatar Airways deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:00 am
STL
- HKT
2 stops37h 45m
Qatar Airways
Mon 9/148:30 pm
HKT
- STL
2 stops38h 32m
Qatar Airways
Deal found 5/8![Qatar Airways logo]()
$1,374
This China Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 stops27h 25m
Multiple Airlines
Thu 8/202:40 am
BKK
- STL
2 stops33h 10m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$1,350
This United Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 8/811:10 am
STL
- BKK
3 stops34h 25m
United Airlines
Wed 8/199:35 am
BKK
- STL
2 stops48h 25m
United Airlines
Deal found 5/10![United Airlines logo]()
$1,584
This China Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/87:56 pm
STL
- BKK
2 stops25h 49m
Multiple Airlines
Wed 8/1910:50 am
BKK
- STL
2 stops23h 45m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$1,352
This Qatar Airways deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 11/311:51 am
STL
- CNX
3 stops34h 29m
Qatar Airways
Tue 11/177:45 pm
CNX
- STL
3 stops41h 11m
Qatar Airways
Deal found 5/9![Qatar Airways logo]()
$1,552
This United Airlines deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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 10/118:35 am
STL
- BKK
3 stops37h 00m
United Airlines
Sat 10/243:45 pm
BKK
- STL
3 stops32h 35m
United Airlines
Deal found 5/6![United Airlines logo]()
$1,634
This United Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:15 am
STL
- BKK
2 stops34h 20m
United Airlines
Fri 10/233:45 pm
BKK
- STL
3 stops30h 42m
United Airlines
Deal found 5/5![United Airlines logo]()
$1,635
This EVA Air deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 8/217:34 pm
STL
- CNX
2 stops26h 51m
Multiple Airlines
Mon 8/2411:35 am
CNX
- STL
2 stops36h 50m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,496
This Qatar Airways deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/219:31 am
STL
- CNX
3 stops37h 44m
Qatar Airways
Mon 8/248:00 pm
CNX
- STL
3 stops35h 25m
Qatar Airways
Deal found 5/10![Qatar Airways logo]()
$1,804
This United Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 10/101:27 pm
STL
- BKK
3 stops32h 08m
United Airlines
Tue 11/104:55 pm
BKK
- STL
3 stops28h 42m
United Airlines
Deal found 5/7![United Airlines logo]()
$1,694
This FlightHub deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 6/86:00 am
STL
- HKT
2 stops44h 10m
Multiple Airlines
Mon 6/228:30 pm
HKT
- STL
2 stops35h 06m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$1,841
This BusinessClass deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 5/272:15 pm
STL
- HKT
2 stops39h 05m
Multiple Airlines
Tue 6/27:35 am
HKT
- STL
3 stops26h 07m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$1,868
This FlightHub deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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.
Fri 7/37:56 pm
STL
- HKT
2 stops37h 19m
Multiple Airlines
Mon 7/610:25 pm
HKT
- STL
2 stops37h 34m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,912
This Cathay Pacific deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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.
Sat 8/16:37 am
STL
- HKT
2 stops40h 13m
Multiple Airlines
Sat 8/87:35 am
HKT
- STL
3 stops28h 07m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$2,488
Last-minute flights from St. Louis to ThailandDiscover last-minute flight deals from St. Louis to Thailand. Data last updated May 10, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Thailand. Data last updated May 10, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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.
Fri 5/82:15 pm
STL
- BKK
2 stops50h 50m
Air Canada
Thu 5/149:50 am
BKK
- STL
2 stops38h 16m
Air Canada
Deal found 5/8![Air Canada logo]()
$1,428
This Orbitz deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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.
Fri 5/81:05 pm
STL
- BKK
2 stops38h 20m
Multiple Airlines
Thu 5/141:20 am
BKK
- STL
2 stops34h 34m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$1,448
This IEagle deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/94:46 pm
STL
- BKK
2 stops30h 09m
Multiple Airlines
Tue 5/194:45 pm
BKK
- STL
2 stops34h 31m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,340
This IEagle deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/94:46 pm
STL
- BKK
2 stops30h 24m
Multiple Airlines
Thu 5/144:45 pm
BKK
- STL
2 stops34h 31m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,369
This oojo deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/94:46 pm
STL
- BKK
2 stops30h 24m
EVA Air
Fri 5/223:20 pm
BKK
- STL
2 stops35h 56m
EVA Air
Deal found 5/6![EVA Air logo]()
$1,399
This IEagle deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/94:46 pm
STL
- BKK
2 stops30h 24m
Multiple Airlines
Wed 5/274:45 pm
BKK
- STL
2 stops34h 31m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$1,458
This China Airlines deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 5/94:46 pm
STL
- BKK
2 stops31h 24m
Multiple Airlines
Sat 5/162:40 am
BKK
- STL
2 stops34h 35m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$1,463
This Ovago deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:00 am
STL
- BKK
2 stops28h 00m
Multiple Airlines
Tue 5/121:20 am
BKK
- STL
2 stops34h 34m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$1,467
This oojo deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 5/127:00 am
STL
- BKK
2 stops39h 25m
EVA Air
Thu 5/144:45 pm
BKK
- STL
2 stops34h 31m
EVA Air
Deal found 5/8![EVA Air logo]()
$1,420
This Justfly.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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.
Wed 5/135:21 pm
STL
- BKK
2 stops48h 09m
Finnair
Wed 7/157:05 am
BKK
- STL
2 stops47h 28m
Finnair
Deal found 5/6![Finnair logo]()
$1,421
This KAYAK deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 5/276:00 am
STL
- BKK
2 stops29h 20m
Multiple Airlines
Wed 6/38:00 am
BKK
- STL
2 stops27h 54m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,413
This oojo deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 6/87:51 pm
STL
- HKT
2 stops40h 04m
Etihad Airways
Sun 6/212:25 am
HKT
- STL
2 stops50h 54m
Etihad Airways
Deal found 5/10![Etihad Airways logo]()
$1,430
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 May 10, 2026.
Search for one-way flight options from St. Louis to Thailand. Find affordable one-way fares based on user searches. Data last updated May 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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 9/18:08 pm
STL
- BKK
3 stops48h 47m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$535
This Kiwi.com deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 7/84:52 pm
STL
- BKK
3 stops55h 18m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$685
This Kiwi.com deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 7/78:08 pm
STL
- BKK
3 stops37h 02m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$723
This Delta deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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.
Tue 7/76:30 am
STL
- BKK
2 stops30h 35m
Delta
Deal found 5/7![Delta logo]()
$761
This Delta deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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.
Mon 7/67:55 pm
STL
- BKK
2 stops41h 10m
Delta
Deal found 5/7![Delta logo]()
$772
This Trip.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/18:08 pm
STL
- BKK
3 stops37h 02m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$795
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/156:21 am
STL
- BKK
3 stops29h 49m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$828
This Kiwi.com deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/63:34 pm
STL
- BKK
3 stops40h 56m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$840
This FlightHub deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:35 am
STL
- BKK
2 stops36h 40m
Qatar Airways
Deal found 5/6![Qatar Airways logo]()
$923
This FlightHub deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/156:35 am
STL
- BKK
2 stops48h 50m
Qatar Airways
Deal found 5/8![Qatar Airways logo]()
$947
This Kiwi.com deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:41 pm
STL
- CNX
3 stops59h 29m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$1,045
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 May 10, 2026.
Round-trip from | $998 (Fareboom) |
|---|---|
One-way from | $535 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $1,342 |
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 May 10, 2026.
Use the filters below to find and compare flights from St. Louis to Thailand that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Fri 10/9
9:35 am-11:50 pm
2 stops26h 15m
Bangkok Suvarnabhumi
Thu 10/22
3:15 am-8:08 pm
2 stops28h 53m
$1,039
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Fri 10/9
7:38 am-11:50 pm
2 stops28h 12m
Bangkok Suvarnabhumi
Thu 10/22
8:45 pm-3:30 pm
2 stops30h 45m
$1,099
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Tue 11/3
3:24 pm-3:55 pm
2 stops35h 31m
Chiang Mai
Tue 11/17
4:55 pm-11:59 pm
2 stops44h 04m
$1,305
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Mon 10/19
7:00 am-7:45 am
2 stops36h 45m
Phuket City
Fri 10/23
8:30 pm-11:59 pm
2 stops39h 29m
$1,339
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 8/12
8:45 pm-12:10 pm
2 stops27h 25m
Bangkok Suvarnabhumi
Thu 8/20
2:40 am-11:50 pm
2 stops33h 10m
$1,350
Quickest round-trip
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sat 8/8
7:56 pm-9:45 am
2 stops25h 49m
Bangkok Suvarnabhumi
Wed 8/19
10:50 am-10:35 pm
2 stops23h 45m
$1,352
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Thu 9/10
6:00 am-7:45 am
2 stops37h 45m
Phuket City
Mon 9/14
8:30 pm-11:02 pm
2 stops38h 32m
$1,374
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Fri 8/21
7:34 pm-10:25 am
2 stops26h 51m
Chiang Mai
Mon 8/24
11:35 am-12:25 pm
2 stops36h 50m
$1,496
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Thu 7/16
11:10 am-9:35 am
3 stops34h 25m
Bangkok Suvarnabhumi
Wed 7/22
9:35 am-12:11 pm
2 stops38h 36m
$1,543
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Tue 11/3
11:51 am-11:20 am
3 stops34h 29m
Chiang Mai
Tue 11/17
7:45 pm-11:56 pm
3 stops41h 11m
$1,552
Showing 1-10 of 28 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
How far ahead should I book a flight from St. Louis to Thailand?
The best time to book flights from St. Louis to Thailand is 9 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from St. Louis to Thailand?
Currently, February is the cheapest month in which you can book a flight from St. Louis to Thailand (average of $167). Flying from St. Louis to Thailand in June is currently the most expensive (average of $1,210). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Thailand
Get insights into the airlines that provide service to Thailand. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Thailand. Reviews last updated May 10, 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
Overall
8.3
Food
7.7
Boarding
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Entertainment
7.8
Comfort
8.2
Overall
8.3
Food
7.7
Boarding
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Entertainment
7.8
Comfort
8.2
Overall
8.3
Food
7.7
Boarding
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Entertainment
7.8
Comfort
8.2
Overall
8.3
Food
7.7
Boarding
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Entertainment
7.8
Comfort
8.2
Overall
8.3
Food
7.7
Boarding
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Entertainment
7.8
Comfort
8.2
Overall
8.3
Food
7.7
Boarding
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Thailand. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Thailand
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Complete your trip
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St. Louis and Thailand flights
Browse other St. Louis and Thailand flight options. Last updated on May 10, 2026.
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Top 7 airlines flying from St. Louis to Thailand
Discover the top 7 airlines that operate flights from St. Louis to Thailand. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$881 | Average$1,248 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$927 | Average$1,235 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$929 | Average$1,087 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$954 | Average$1,278 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$983 | Average$1,242 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,007 | Average$1,260 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,094 | Average$1,372 | FlexibilityNo cancel fee | On-time68% |