$462+ Cheap flights from St. Louis (STL) to Thailand
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Dec 4 — Dec 111
Round-trip
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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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
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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 November 4, 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 November 4, 2026.
This Gurufare deal was found by Cheapflights users on 11/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 am -
2 stops29h 15m
Sat 12/127:15 pm -
2 stops34h 32m
Deal found 11/1![Cathay Pacific logo]()
$1,156
This SmartFares deal was found by Cheapflights users on 11/2. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/93:23 pm -
2 stops43h 52m
Mon 11/167:30 am -
2 stops29h 29m
Deal found 11/2![Multiple Airlines logo]()
$1,178
This oojo deal was found by Cheapflights users on 11/1. 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 11/156:00 am -
2 stops50h 50m
Wed 11/1811:25 pm -
2 stops37h 34m
Deal found 11/1![Multiple Airlines logo]()
$1,178
This Justfly.com deal was found by Cheapflights users on 11/3. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:10 am -
2 stops31h 50m
Wed 12/91:00 am -
2 stops32h 40m
Deal found 11/3![Japan Airlines logo]()
$1,179
This United Airlines deal was found by Cheapflights users on 11/2. 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 11/91:40 pm -
3 stops32h 50m
Mon 11/164:55 pm -
3 stops30h 53m
Deal found 11/2![United Airlines logo]()
$1,218
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 12/38:17 am -
2 stops38h 13m
Thu 12/104:55 pm -
3 stops29h 50m
Deal found 11/3![United Airlines logo]()
$1,226
This FlightHub deal was found by Cheapflights users on 11/1. 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.
Tue 12/17:26 am -
2 stops32h 39m
Tue 12/87:55 am -
2 stops25h 45m
Deal found 11/1![Japan Airlines logo]()
$1,231
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:00 am -
2 stops28h 35m
Sun 12/2010:05 pm -
2 stops30h 46m
Deal found 11/2![American Airlines logo]()
$1,249
This KAYAK deal was found by Cheapflights users on 11/3. 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 11/257:26 am -
2 stops43h 59m
Fri 12/111:00 am -
2 stops32h 40m
Deal found 11/3![Japan Airlines logo]()
$1,253
This Expedia deal was found by Cheapflights users on 11/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:03 am -
2 stops41h 22m
Thu 12/171:05 am -
2 stops28h 19m
Deal found 11/2![Korean Air logo]()
$1,255
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Sun 11/17:05 pm -
2 stops45h 05m
Sun 11/87:10 am -
2 stops27h 30m
Deal found 11/1![United Airlines logo]()
$1,256
This FlightHub deal was found by Cheapflights users on 11/1. 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.
Sun 11/156:00 am -
2 stops45h 00m
Sun 1/175:15 pm -
2 stops58h 53m
Deal found 11/1![Multiple Airlines logo]()
$1,328
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 November 4, 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 November 4, 2026.
This oojo deal was found by Cheapflights users on 11/1. 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 11/156:00 am -
2 stops50h 50m
Wed 11/1811:25 pm -
2 stops37h 34m
Deal found 11/1![Multiple Airlines logo]()
$1,178
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 1/209:05 am -
2 stops31h 05m
Mon 1/254:55 pm -
3 stops30h 40m
Deal found 11/2![United Airlines logo]()
$1,218
This Korean Air deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:13 am -
2 stops49h 12m
Thu 11/1210:55 pm -
2 stops30h 28m
Deal found 10/30![Korean Air logo]()
$1,355
This Qatar Airways deal was found by Cheapflights users on 11/3. 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.
Sun 1/171:12 pm -
3 stops31h 13m
Sun 2/77:45 pm -
3 stops37h 44m
Deal found 11/3![Qatar Airways logo]()
$1,591
This Cathay Pacific deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/206:01 am -
2 stops43h 04m
Mon 1/257:30 am -
2 stops29h 06m
Deal found 10/31![Multiple Airlines logo]()
$1,185
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 12/38:17 am -
2 stops38h 13m
Thu 12/104:55 pm -
3 stops29h 50m
Deal found 11/3![United Airlines logo]()
$1,226
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 1/2711:00 am -
3 stops35h 30m
Sun 2/79:10 am -
2 stops23h 18m
Deal found 11/2![United Airlines logo]()
$1,258
This SmartFares deal was found by Cheapflights users on 11/3. 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.
Sun 1/172:28 pm -
2 stops36h 32m
Sun 2/75:15 pm -
2 stops58h 53m
Deal found 11/3![Multiple Airlines logo]()
$1,335
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Thu 1/289:05 am -
3 stops37h 25m
Fri 2/54:55 pm -
3 stops30h 13m
Deal found 11/1![United Airlines logo]()
$1,268
This United Airlines deal was found by Cheapflights users on 11/3. 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 2/107:29 am -
2 stops27h 51m
Wed 3/34:55 pm -
3 stops30h 47m
Deal found 11/3![United Airlines logo]()
$1,293
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Sat 3/66:00 am -
3 stops40h 30m
Fri 4/309:35 am -
2 stops48h 31m
Deal found 11/3![United Airlines logo]()
$1,304
This KAYAK deal was found by Cheapflights users on 11/1. 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 1/124:06 pm -
2 stops29h 29m
Thu 1/285:10 pm -
3 stops58h 58m
Deal found 11/1![Multiple Airlines logo]()
$1,638
This Qatar Airways deal was found by Cheapflights users on 11/4. 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.
Tue 1/1212:55 pm -
3 stops41h 05m
Thu 1/2812:10 pm -
3 stops39h 45m
Deal found 11/4![Qatar Airways logo]()
$2,078
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/67:00 am -
3 stops39h 30m
Sat 4/249:35 am -
2 stops48h 31m
Deal found 10/31![United Airlines logo]()
$1,308
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Sun 1/108:52 am -
3 stops61h 38m
Sun 1/244:55 pm -
2 stops38h 22m
Deal found 11/1![United Airlines logo]()
$1,313
This China Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 11/96:00 am -
2 stops39h 25m
Fri 1/1511:25 am -
2 stops38h 50m
Deal found 10/31![Multiple Airlines logo]()
$1,795
This United Airlines deal was found by Cheapflights users on 11/3. 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 2/1010:45 am -
3 stops35h 45m
Sat 3/204:55 pm -
3 stops37h 43m
Deal found 11/3![United Airlines logo]()
$1,331
This China Airlines deal was found by Cheapflights users on 11/2. 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.
Sun 11/158:50 am -
3 stops36h 35m
Sun 1/1711:25 am -
2 stops40h 43m
Deal found 11/2![Multiple Airlines logo]()
$1,928
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 2/1010:45 am -
3 stops35h 45m
Mon 2/227:10 am -
2 stops27h 13m
Deal found 11/2![United Airlines logo]()
$1,364
Last-minute flights from St. Louis to ThailandDiscover last-minute flight deals from St. Louis to Thailand. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Thailand. Data last updated November 4, 2026 and is based on user searches.
This SmartFares deal was found by Cheapflights users on 11/2. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/93:23 pm -
2 stops43h 52m
Mon 11/167:30 am -
2 stops29h 29m
Deal found 11/2![Multiple Airlines logo]()
$1,178
This United Airlines deal was found by Cheapflights users on 11/2. 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 11/91:40 pm -
3 stops32h 50m
Mon 11/164:55 pm -
3 stops30h 53m
Deal found 11/2![United Airlines logo]()
$1,218
This oojo deal was found by Cheapflights users on 11/1. 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 11/156:00 am -
2 stops50h 50m
Wed 11/1811:25 pm -
2 stops37h 34m
Deal found 11/1![Multiple Airlines logo]()
$1,178
This FlightHub deal was found by Cheapflights users on 11/1. 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.
Sun 11/156:00 am -
2 stops45h 00m
Sun 1/175:15 pm -
2 stops58h 53m
Deal found 11/1![Multiple Airlines logo]()
$1,328
This Gurufare deal was found by Cheapflights users on 11/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 am -
2 stops29h 15m
Sat 12/127:15 pm -
2 stops34h 32m
Deal found 11/1![Cathay Pacific logo]()
$1,156
This KAYAK deal was found by Cheapflights users on 11/3. 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 11/257:26 am -
2 stops43h 59m
Fri 12/111:00 am -
2 stops32h 40m
Deal found 11/3![Japan Airlines logo]()
$1,253
This United Airlines deal was found by Cheapflights users on 11/3. 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 11/2510:53 am -
3 stops35h 37m
Sat 12/127:10 am -
2 stops25h 16m
Deal found 11/3![United Airlines logo]()
$1,260
This FlightHub deal was found by Cheapflights users on 11/1. 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.
Tue 12/17:26 am -
2 stops32h 39m
Tue 12/87:55 am -
2 stops25h 45m
Deal found 11/1![Japan Airlines logo]()
$1,231
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:00 am -
2 stops28h 35m
Sun 12/2010:05 pm -
2 stops30h 46m
Deal found 11/2![American Airlines logo]()
$1,249
This Expedia deal was found by Cheapflights users on 11/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:03 am -
2 stops41h 22m
Thu 12/171:05 am -
2 stops28h 19m
Deal found 11/2![Korean Air logo]()
$1,255
This Justfly.com deal was found by Cheapflights users on 11/3. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:10 am -
2 stops31h 50m
Wed 12/91:00 am -
2 stops32h 40m
Deal found 11/3![Japan Airlines logo]()
$1,179
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 12/38:17 am -
2 stops38h 13m
Thu 12/104:55 pm -
3 stops29h 50m
Deal found 11/3![United Airlines logo]()
$1,226
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 November 4, 2026.
Search for one-way flight options from St. Louis to Thailand. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
This Trip.com deal was found by Cheapflights users on 11/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/187:02 pm -
3 stops51h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$462
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Wed 1/137:02 pm -
3 stops51h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$492
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/96:20 pm -
3 stops57h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$493
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/86:20 pm -
3 stops50h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$519
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/307:02 pm -
3 stops37h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$544
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Fri 12/47:58 pm -
3 stops50h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$546
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Sat 12/57:54 pm -
3 stops37h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$550
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:58 pm -
3 stops50h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$556
This Trip.com deal was found by Cheapflights users on 11/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/277:02 pm -
3 stops38h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$576
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 November 4, 2026.
Round-trip from | $1,039 (Ovago) |
|---|---|
One-way from | $462 (Trip.com) |
Popular in | December |
Cheapest in | February |
Average price | $1,320 |
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 7,457,451 searches. Data last updated November 4, 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. LouisChiang Mai
STL Lambert-St Louis - CNX Chiang Mai
STLCNX
Lambert-St Louis
Wed 1/27
7:02 pm-10:45 pm
3 stops38h 43m
Chiang Mai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$576
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Wed 1/13
6:01 am-12:15 am
2 stops29h 14m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$580
Quickest round-trip
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Tue 4/6
12:27 pm-12:10 am
2 stops23h 43m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$580
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Sat 2/6
6:01 am-12:15 am
2 stops29h 14m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$640
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Tue 4/6
3:15 pm-9:35 am
3 stops30h 20m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$657
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Tue 1/12
8:05 am-12:20 am
2 stops27h 15m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$660
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Thu 12/3
8:17 am-11:30 am
2 stops38h 13m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$665
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Sat 2/6
8:52 am-11:30 am
3 stops37h 38m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$681
St. LouisPhuket City
STL Lambert-St Louis - HKT Phuket City
STLHKT
Lambert-St Louis
Sun 11/15
6:00 am-9:50 pm
2 stops50h 50m
Phuket City
Wed 11/18
11:25 pm-11:59 pm
2 stops37h 34m
$1,178
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Wed 1/20
6:01 am-2:05 pm
2 stops43h 04m
Bangkok Suvarnabhumi
Mon 1/25
7:30 am-11:36 pm
2 stops29h 06m
$1,185
Showing 1-10 of 27 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, August is the cheapest month in which you can book a flight from St. Louis to Thailand (average of $1,031). Flying from St. Louis to Thailand in December is currently the most expensive (average of $2,237). 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 8 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 November 4, 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.
Crew
8.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Food
7.7
Entertainment
7.8
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Crew
8.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Food
7.7
Entertainment
7.8
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Crew
8.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Food
7.7
Entertainment
7.8
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Crew
8.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Food
7.7
Entertainment
7.8
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Crew
8.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Food
7.7
Entertainment
7.8
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Crew
8.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Food
7.7
Entertainment
7.8
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Thailand. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Thailand
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Thailand by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Thailand by cabin class
Find flights from St. Louis to Thailand, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Thailand flights
Browse other St. Louis and Thailand flight options. Last updated on November 4, 2026.
Popular flight searches
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St. Louis to Thailand flights
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Top 8 airlines flying from St. Louis to Thailand
Discover the top 8 airlines that operate flights from St. Louis to Thailand. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated November 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$793 | Average$1,154 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$881 | Average$1,270 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$946 | Average$1,226 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$948 | Average$1,196 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$974 | Average$1,399 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$976 | Average$1,158 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$992 | Average$1,333 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,124 | Average$1,553 | FlexibilityNo cancel fee | On-time80% |