$621+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Jul 7 — Jul 141
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Thailand
Cheapest
Best
Last-minute
One-way
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 June 7, 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 June 7, 2026.
This oojo deal was found by Cheapflights users on 6/6. 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.
Thu 8/206:54 am
STL
- BKK
2 stops28h 56m
Etihad Airways
Wed 11/188:30 am
BKK
- STL
2 stops41h 47m
Etihad Airways
Deal found 6/6![Etihad Airways logo]()
$1,014
This oojo deal was found by Cheapflights users on 6/5. 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.
Sun 11/16:00 am
STL
- BKK
2 stops35h 35m
Etihad Airways
Sat 11/218:50 pm
BKK
- STL
2 stops29h 27m
Etihad Airways
Deal found 6/5![Etihad Airways logo]()
$1,020
This oojo deal was found by Cheapflights users on 6/6. 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.
Wed 9/24:54 pm
STL
- BKK
2 stops31h 16m
Etihad Airways
Fri 9/183:15 am
BKK
- STL
2 stops41h 05m
Etihad Airways
Deal found 6/6![Etihad Airways logo]()
$1,021
This Etihad Airways deal was found by Cheapflights users on 6/3. 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.
Sun 10/119:38 am
STL
- BKK
2 stops26h 12m
Multiple Airlines
Sat 10/249:00 pm
BKK
- STL
2 stops35h 08m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$1,038
This Etihad Airways deal was found by Cheapflights users on 6/2. 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.
Thu 8/204:54 pm
STL
- BKK
2 stops31h 16m
Multiple Airlines
Wed 11/188:50 pm
BKK
- STL
2 stops32h 28m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$1,039
This oojo deal was found by Cheapflights users on 6/6. 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.
Fri 10/95:30 am
STL
- BKK
2 stops37h 05m
Etihad Airways
Wed 10/213:15 am
BKK
- STL
2 stops48h 15m
Etihad Airways
Deal found 6/6![Etihad Airways logo]()
$1,076
This BusinessClass deal was found by Cheapflights users on 6/2. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:25 pm
STL
- HKT
2 stops44h 30m
Etihad Airways
Mon 8/249:25 am
HKT
- STL
2 stops46h 05m
Etihad Airways
Deal found 6/2![Etihad Airways logo]()
$1,077
This oojo deal was found by Cheapflights users on 6/5. 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.
Sat 10/179:47 am
STL
- BKK
2 stops32h 48m
Etihad Airways
Sun 10/252:40 pm
BKK
- STL
2 stops34h 23m
Etihad Airways
Deal found 6/5![Etihad Airways logo]()
$1,087
This Etihad Airways deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/109:47 am
STL
- BKK
2 stops32h 58m
Multiple Airlines
Wed 10/213:55 pm
BKK
- STL
2 stops33h 08m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$1,098
This Ovago deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/191:26 pm
STL
- HKT
2 stops29h 14m
Etihad Airways
Sun 7/263:20 pm
HKT
- STL
2 stops40h 43m
Etihad Airways
Deal found 6/4![Etihad Airways logo]()
$1,128
This Qatar Airways deal was found by Cheapflights users on 6/3. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:00 am
STL
- HKT
2 stops48h 50m
Qatar Airways
Mon 9/288:30 pm
HKT
- STL
2 stops39h 10m
Qatar Airways
Deal found 6/3![Qatar Airways logo]()
$1,376
This oojo deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:32 pm
STL
- HKT
2 stops31h 18m
Cathay Pacific
Mon 8/2411:50 am
HKT
- STL
2 stops47h 52m
Cathay Pacific
Deal found 6/3![Cathay Pacific logo]()
$1,398
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 June 7, 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 June 7, 2026.
This BusinessClass deal was found by Cheapflights users on 6/2. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:25 pm
STL
- HKT
2 stops44h 30m
Etihad Airways
Mon 8/249:25 am
HKT
- STL
2 stops46h 05m
Etihad Airways
Deal found 6/2![Etihad Airways logo]()
$1,077
This China Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/87:56 pm
STL
- BKK
2 stops28h 14m
Multiple Airlines
Tue 8/182:40 am
BKK
- STL
2 stops31h 55m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$1,308
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/138:42 am
STL
- BKK
2 stops55h 53m
United Airlines
Sat 8/229:35 am
BKK
- STL
2 stops48h 25m
United Airlines
Deal found 6/4![United Airlines logo]()
$1,373
This Qatar Airways deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:00 am
STL
- HKT
2 stops48h 50m
Qatar Airways
Mon 9/288:30 pm
HKT
- STL
2 stops39h 10m
Qatar Airways
Deal found 6/4![Qatar Airways logo]()
$1,376
This oojo deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:32 pm
STL
- HKT
2 stops31h 18m
Cathay Pacific
Mon 8/2411:50 am
HKT
- STL
2 stops47h 52m
Cathay Pacific
Deal found 6/3![Cathay Pacific logo]()
$1,398
This Korean Air deal was found by Cheapflights users on 6/5. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:00 am
STL
- CNX
2 stops27h 55m
Korean Air
Wed 11/412:15 am
CNX
- STL
2 stops27h 25m
Korean Air
Deal found 6/5![Korean Air logo]()
$1,679
This China Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:45 pm
STL
- BKK
2 stops27h 25m
Multiple Airlines
Fri 8/2110:50 am
BKK
- STL
2 stops25h 00m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$1,350
This oojo deal was found by Cheapflights users on 6/6. 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.
Tue 12/16:00 am
STL
- CNX
2 stops35h 05m
Etihad Airways
Fri 12/48:50 am
CNX
- STL
2 stops47h 16m
Etihad Airways
Deal found 6/6![Etihad Airways logo]()
$1,416
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Wed 7/810:20 am
STL
- BKK
2 stops30h 15m
United Airlines
Wed 8/127:00 am
BKK
- STL
2 stops28h 38m
United Airlines
Deal found 6/6![United Airlines logo]()
$1,504
This EVA Air deal was found by Cheapflights users on 6/6. 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 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 6/6![Multiple Airlines logo]()
$1,460
This United Airlines deal was found by Cheapflights users on 6/5. 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.
Wed 8/1212:59 pm
STL
- BKK
3 stops32h 36m
United Airlines
Fri 8/217:00 am
BKK
- STL
2 stops28h 38m
United Airlines
Deal found 6/5![United Airlines logo]()
$1,508
This Qatar Airways deal was found by Cheapflights users on 6/2. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 am
STL
- HKT
2 stops37h 45m
Qatar Airways
Thu 9/178:30 pm
HKT
- STL
2 stops39h 57m
Qatar Airways
Deal found 6/2![Qatar Airways logo]()
$1,674
This Ovago deal was found by Cheapflights users on 6/6. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/66:13 pm
STL
- HKT
2 stops48h 27m
Etihad Airways
Mon 7/139:25 am
HKT
- STL
2 stops45h 56m
Etihad Airways
Deal found 6/6![Etihad Airways logo]()
$1,605
This KAYAK deal was found by Cheapflights users on 6/2. 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 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 stops35h 31m
Multiple Airlines
Fri 12/410:10 am
CNX
- STL
3 stops26h 49m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$1,512
This Gotogate deal was found by Cheapflights users on 6/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/172:40 pm
STL
- HKT
2 stops32h 10m
Multiple Airlines
Mon 8/2411:50 am
HKT
- STL
3 stops41h 20m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$1,684
This Gotogate deal was found by Cheapflights users on 6/6. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:02 am
STL
- HKT
2 stops37h 43m
Multiple Airlines
Tue 7/2111:50 am
HKT
- STL
3 stops38h 02m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$1,696
This Mytrip deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/177:56 pm
STL
- HKT
2 stops47h 49m
Multiple Airlines
Fri 7/3111:50 am
HKT
- STL
3 stops38h 02m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$1,919
Last-minute flights from St. Louis to ThailandDiscover last-minute flight deals from St. Louis to Thailand. Data last updated June 7, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Thailand. Data last updated June 7, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 6/6. 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.
Sun 6/218:59 am
STL
- BKK
2 stops39h 56m
Qatar Airways
Sat 6/273:00 am
BKK
- STL
2 stops33h 16m
Qatar Airways
Deal found 6/6![Qatar Airways logo]()
$1,440
This BusinessClass deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/29:06 am
STL
- BKK
2 stops25h 09m
ANA
Thu 7/99:35 pm
BKK
- STL
2 stops33h 48m
ANA
Deal found 6/4![ANA logo]()
$1,406
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:23 pm
STL
- BKK
2 stops26h 12m
United Airlines
Mon 7/133:45 pm
BKK
- STL
3 stops36h 01m
United Airlines
Deal found 6/3![United Airlines logo]()
$1,386
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/710:20 am
STL
- BKK
3 stops35h 15m
United Airlines
Tue 7/143:45 pm
BKK
- STL
3 stops32h 26m
United Airlines
Deal found 6/3![United Airlines logo]()
$1,377
This United Airlines deal was found by Cheapflights users on 6/6. 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 7/96:00 am
STL
- BKK
2 stops34h 35m
United Airlines
Wed 7/159:35 am
BKK
- STL
2 stops50h 09m
United Airlines
Deal found 6/6![United Airlines logo]()
$1,363
This Orbitz deal was found by Cheapflights users on 6/3. 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.
Thu 7/91:13 pm
STL
- BKK
2 stops28h 42m
ANA
Thu 7/169:35 pm
BKK
- STL
2 stops26h 36m
ANA
Deal found 6/3![ANA logo]()
$1,393
This Justfly.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:58 pm
STL
- BKK
2 stops47h 32m
Finnair
Tue 7/217:05 am
BKK
- STL
2 stops48h 48m
Finnair
Deal found 6/2![Finnair logo]()
$1,460
This oojo deal was found by Cheapflights users on 6/2. 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.
Wed 7/159:25 am
STL
- BKK
2 stops26h 25m
Etihad Airways
Wed 7/229:00 pm
BKK
- STL
2 stops34h 21m
Etihad Airways
Deal found 6/2![Etihad Airways logo]()
$1,275
This Etihad Airways deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/159:25 am
STL
- BKK
2 stops26h 25m
Multiple Airlines
Wed 7/229:00 pm
BKK
- STL
2 stops35h 03m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$1,461
This KAYAK deal was found by Cheapflights users on 6/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:32 am
STL
- BKK
2 stops35h 58m
Finnair
Wed 7/227:05 am
BKK
- STL
2 stops48h 48m
Finnair
Deal found 6/2![Finnair logo]()
$1,469
This Ovago deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/191:26 pm
STL
- HKT
2 stops29h 14m
Etihad Airways
Sun 7/263:20 pm
HKT
- STL
2 stops40h 43m
Etihad Airways
Deal found 6/4![Etihad Airways logo]()
$1,128
This oojo deal was found by Cheapflights users on 6/5. 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.
Sun 7/196:02 am
STL
- HKT
2 stops37h 43m
Qatar Airways
Sun 7/269:20 am
HKT
- STL
2 stops45h 58m
Qatar Airways
Deal found 6/5![Qatar Airways logo]()
$1,604
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 June 7, 2026.
Search for one-way flight options from St. Louis to Thailand. Find affordable one-way fares based on user searches. Data last updated June 7, 2026.
This oojo deal was found by Cheapflights users on 6/2. 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.
Wed 8/129:32 am
STL
- BKK
2 stops32h 48m
Qatar Airways
Deal found 6/2![Qatar Airways logo]()
$621
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:08 pm
STL
- BKK
3 stops39h 27m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$642
This oojo deal was found by Cheapflights users on 6/6. 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.
Wed 7/221:25 pm
STL
- BKK
2 stops34h 45m
Etihad Airways
Deal found 6/6![Etihad Airways logo]()
$643
This oojo deal was found by Cheapflights users on 6/3. 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.
Thu 7/301:25 pm
STL
- BKK
2 stops29h 50m
Qatar Airways
Deal found 6/3![Qatar Airways logo]()
$654
This BusinessClass deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/89:39 am
STL
- HKT
2 stops26h 11m
Etihad Airways
Deal found 6/5![Etihad Airways logo]()
$692
This Air Canada deal was found by Cheapflights users on 6/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/222:40 pm
STL
- BKK
2 stops43h 15m
Air Canada
Deal found 6/2![Air Canada logo]()
$712
This Kiwi.com deal was found by Cheapflights users on 6/6. 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.
Sat 7/411:18 am
STL
- BKK
3 stops39h 37m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$734
This Kiwi.com deal was found by Cheapflights users on 6/6. 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.
Fri 7/36:10 pm
STL
- BKK
3 stops56h 45m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$741
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Sat 7/49:20 am
STL
- BKK
2 stops31h 15m
United Airlines
Deal found 6/6![United Airlines logo]()
$756
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Fri 7/36:01 am
STL
- BKK
2 stops29h 54m
United Airlines
Deal found 6/6![United Airlines logo]()
$759
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/221:13 pm
STL
- BKK
3 stops32h 22m
United Airlines
Deal found 6/3![United Airlines logo]()
$764
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:08 pm
STL
- HKT
3 stops37h 37m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$764
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 June 7, 2026.
Round-trip from | $1,014 (oojo) |
|---|---|
One-way from | $621 (oojo) |
Popular in | December |
Cheapest in | February |
Average price | $1,480 |
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 June 7, 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. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Mon 8/17
3:25 pm-11:55 pm
2 stops44h 30m
Phuket City
Mon 8/24
9:25 am-7:30 pm
2 stops46h 05m
$1,077
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Sat 8/8
7:56 pm-12:10 pm
2 stops28h 14m
Bangkok Suvarnabhumi
Tue 8/18
2:40 am-10:35 pm
2 stops31h 55m
$1,308
Quickest round-trip
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 8/12
8:45 pm-12:10 pm
2 stops27h 25m
Bangkok Suvarnabhumi
Fri 8/21
10:50 am-11:50 pm
2 stops25h 00m
$1,350
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Thu 8/13
8:42 am-4:35 am
2 stops55h 53m
Bangkok Suvarnabhumi
Sat 8/22
9:35 am-10:00 pm
2 stops48h 25m
$1,373
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Thu 9/24
6:00 am-6:50 pm
2 stops48h 50m
Phuket City
Mon 9/28
8:30 pm-11:40 pm
2 stops39h 10m
$1,376
St. LouisPhuket City
STL - HKT
STLHKT
Lambert-St Louis
Mon 8/17
3:32 pm-10:50 am
2 stops31h 18m
Phuket City
Mon 8/24
11:50 am-11:42 pm
2 stops47h 52m
$1,398
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Tue 12/1
6:00 am-6:05 am
2 stops35h 05m
Chiang Mai
Fri 12/4
8:50 am-7:06 pm
2 stops47h 16m
$1,416
St. LouisChiang Mai
STL - CNX
STLCNX
Lambert-St Louis
Fri 8/21
7:36 pm-10:25 am
2 stops26h 49m
Chiang Mai
Mon 8/24
11:35 am-12:25 pm
2 stops36h 50m
$1,460
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 7/8
10:20 am-4:35 am
2 stops30h 15m
Bangkok Suvarnabhumi
Wed 8/12
7:00 am-11:38 pm
2 stops28h 38m
$1,504
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Wed 8/12
12:59 pm-9:35 am
3 stops32h 36m
Bangkok Suvarnabhumi
Fri 8/21
7:00 am-11:38 pm
2 stops28h 38m
$1,508
Showing 1-10 of 34 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-HKT
STL-BKK
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-HKT
STL-BKK
STL-CNX
What is the cheapest month to book a flight from St. Louis to Thailand?
Currently, February is the cheapest month in which you can book a flight from St. Louis to Thailand (average of $167). Flying from St. Louis to Thailand in June is currently the most expensive (average of $1,210). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from St. Louis to Thailand?
The best time to book flights from St. Louis to Thailand is 7 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Thailand
Get insights into the airlines that provide service to Thailand. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Thailand. Reviews last updated June 7, 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.
Comfort
8.2
Food
7.7
Crew
8.7
Boarding
8.4
Entertainment
7.8
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Comfort
8.2
Food
7.7
Crew
8.7
Boarding
8.4
Entertainment
7.8
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Comfort
8.2
Food
7.7
Crew
8.7
Boarding
8.4
Entertainment
7.8
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Comfort
8.2
Food
7.7
Crew
8.7
Boarding
8.4
Entertainment
7.8
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Comfort
8.2
Food
7.7
Crew
8.7
Boarding
8.4
Entertainment
7.8
Overall
8.3
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Comfort
8.2
Food
7.7
Crew
8.7
Boarding
8.4
Entertainment
7.8
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Top regions
Alternative routes for St. Louis to Thailand
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Thailand by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Thailand by cabin class
Find flights from St. Louis to Thailand, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Thailand flights
Browse other St. Louis and Thailand flight options. Last updated on June 7, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Thailand flights
Consider these flights traveling from St. Louis to Thailand.
Fly to Thailand regions
Consider these flights traveling to Thailand regions.
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 June 7, 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$1,106 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$954 | Average$1,274 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$982 | Average$1,231 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,007 | Average$1,271 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,017 | Average$1,237 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,048 | Average$1,456 | FlexibilityNo cancel fee | On-time74% |