$604+ Cheap flights from Thailand to St. Louis (STL)
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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — STL
Apr 25 — May 21
Round-trip
1 adult, Economy
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Find cheap flights from Thailand to St. Louis 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 Thailand to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from Thailand to St. LouisExplore the most affordable flight options available from Thailand to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2026.
Explore the most affordable flight options available from Thailand to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2026.
This China Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 10/3110:55 am
BKK
- STL
2 stops40h 31m
Multiple Airlines
Sat 11/143:24 pm
STL
- BKK
2 stops36h 21m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,036
This Air Canada deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:05 am
BKK
- STL
2 stops52h 45m
Air Canada
Sat 9/129:16 am
STL
- BKK
2 stops31h 49m
Air Canada
Deal found 3/25![Air Canada logo]()
$1,126
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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.
Fri 10/3012:55 am
BKK
- STL
2 stops34h 08m
Delta
Sat 11/145:45 pm
STL
- BKK
2 stops42h 00m
Delta
Deal found 3/22![Delta logo]()
$1,176
This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/237:40 pm
BKK
- STL
2 stops40h 14m
Qatar Airways
Mon 6/17:18 pm
STL
- BKK
2 stops29h 37m
Qatar Airways
Deal found 3/25![Qatar Airways logo]()
$1,354
This Korean Air deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:25 pm
HKT
- STL
2 stops35h 36m
Korean Air
Sun 9/136:45 am
STL
- HKT
2 stops27h 25m
Korean Air
Deal found 3/22![Korean Air logo]()
$1,372
This Air Canada deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/218:15 am
BKK
- STL
2 stops44h 15m
Air Canada
Sun 12/274:15 pm
STL
- BKK
2 stops49h 15m
Air Canada
Deal found 3/25![Air Canada logo]()
$1,391
This United Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 10/314:55 pm
BKK
- STL
3 stops29h 47m
United Airlines
Sat 11/144:17 pm
STL
- BKK
3 stops54h 08m
United Airlines
Deal found 3/23![United Airlines logo]()
$1,406
This Qatar Airways deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:55 pm
HKT
- STL
2 stops36h 47m
Qatar Airways
Sat 11/73:23 pm
STL
- HKT
2 stops26h 27m
Qatar Airways
Deal found 3/25![Qatar Airways logo]()
$1,483
Best flights from Thailand to St. LouisDiscover carefully curated flight deals from Thailand to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 26, 2026.
Discover carefully curated flight deals from Thailand to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 26, 2026.
This Air Canada deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:05 am
BKK
- STL
2 stops52h 45m
Air Canada
Sat 9/129:16 am
STL
- BKK
2 stops31h 49m
Air Canada
Deal found 3/25![Air Canada logo]()
$1,126
This Korean Air deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:25 pm
HKT
- STL
2 stops35h 36m
Korean Air
Sun 9/136:45 am
STL
- HKT
2 stops27h 25m
Korean Air
Deal found 3/22![Korean Air logo]()
$1,372
This United Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:35 am
BKK
- STL
2 stops38h 38m
United Airlines
Sat 9/125:32 pm
STL
- BKK
3 stops28h 03m
United Airlines
Deal found 3/25![United Airlines logo]()
$1,410
This Qatar Airways deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/82:30 am
BKK
- STL
2 stops31h 54m
Multiple Airlines
Mon 8/106:51 pm
STL
- BKK
2 stops30h 34m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$1,447
This EVA Air deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/234:45 pm
BKK
- STL
3 stops35h 01m
Multiple Airlines
Mon 6/17:41 pm
STL
- BKK
2 stops27h 39m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$1,739
This United Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/237:00 am
BKK
- STL
3 stops44h 46m
United Airlines
Mon 6/19:06 am
STL
- BKK
3 stops36h 29m
United Airlines
Deal found 3/25![United Airlines logo]()
$1,832
This China Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:30 pm
BKK
- STL
2 stops29h 05m
Multiple Airlines
Tue 4/288:25 am
STL
- BKK
2 stops37h 20m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,974
This United Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/93:45 pm
BKK
- STL
3 stops37h 11m
United Airlines
Thu 9/103:02 pm
STL
- BKK
3 stops30h 33m
United Airlines
Deal found 3/25![United Airlines logo]()
$2,024
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/239:35 am
BKK
- STL
2 stops32h 15m
United Airlines
Tue 4/2811:15 am
STL
- BKK
3 stops34h 20m
United Airlines
Deal found 3/21![United Airlines logo]()
$6,637
Last-minute flights from Thailand to St. LouisDiscover last-minute flight deals from Thailand to St. Louis. Data last updated March 26, 2026 and is based on user searches.
Discover last-minute flight deals from Thailand to St. Louis. Data last updated March 26, 2026 and is based on user searches.
This Qatar Airways deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/82:30 am
BKK
- STL
2 stops31h 54m
Multiple Airlines
Mon 8/106:51 pm
STL
- BKK
2 stops30h 34m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$1,447
This Trip.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:00 pm
BKK
- STL
2 stops39h 24m
Qatar Airways
Thu 9/106:41 am
STL
- BKK
2 stops36h 34m
Qatar Airways
Deal found 3/25![Qatar Airways logo]()
$1,438
This United Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/93:45 pm
BKK
- STL
3 stops37h 11m
United Airlines
Thu 9/103:02 pm
STL
- BKK
3 stops30h 33m
United Airlines
Deal found 3/25![United Airlines logo]()
$2,024
This China Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:30 pm
BKK
- STL
2 stops29h 05m
Multiple Airlines
Tue 4/288:25 am
STL
- BKK
2 stops37h 20m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,974
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/239:35 am
BKK
- STL
2 stops32h 15m
United Airlines
Tue 4/2811:15 am
STL
- BKK
3 stops34h 20m
United Airlines
Deal found 3/21![United Airlines logo]()
$6,637
One-way flights from Thailand to St. LouisSearch for one-way flight options from Thailand to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 26, 2026.
Search for one-way flight options from Thailand to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 26, 2026.
This China Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:20 pm
BKK
- STL
3 stops37h 30m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$604
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 6/111:30 pm
BKK
- STL
3 stops55h 53m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$615
This Delta deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 6/19:50 am
BKK
- STL
2 stops26h 40m
Delta
Deal found 3/23![Delta logo]()
$677
This Delta deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/169:50 am
BKK
- STL
2 stops26h 49m
Delta
Deal found 3/25![Delta logo]()
$684
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1611:45 am
BKK
- STL
3 stops43h 38m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$738
This Korean Air deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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.
Sat 8/229:50 am
BKK
- STL
2 stops26h 46m
Korean Air
Deal found 3/23![Korean Air logo]()
$806
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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.
Sat 8/229:50 am
BKK
- STL
2 stops26h 46m
Delta
Deal found 3/22![Delta logo]()
$835
This China Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:50 am
BKK
- STL
2 stops37h 30m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$843
Find flight deals from Thailand to St. Louis
Keep the following information in mind while searching for Thailand to St. Louis flight deals. Data was last updated March 26, 2026.
Round-trip from | $1,126 (Air Canada) |
|---|---|
One-way from | $604 (China Airlines) |
Popular in | March |
Cheapest in | February |
Average price | $1,829 |
Cheapflights Fare Finder
Customize your flight search to find flights from Thailand to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 26, 2026.
Use the filters below to find and compare flights from Thailand to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Wed 9/9
7:05 am-11:50 pm
2 stops52h 45m
Lambert-St Louis
Sat 9/12
9:16 am-5:05 am
2 stops31h 49m
$1,126
Phuket CitySt. Louis
HKT - STL
HKTSTL
Phuket City
Wed 9/9
11:25 pm-11:01 pm
2 stops35h 36m
Lambert-St Louis
Sun 9/13
6:45 am-10:10 pm
2 stops27h 25m
$1,372
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Wed 9/9
9:35 am-12:13 pm
2 stops38h 38m
Lambert-St Louis
Sat 9/12
5:32 pm-9:35 am
3 stops28h 03m
$1,410
Quickest round-trip
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Wed 4/8
2:30 am-10:24 pm
2 stops31h 54m
Lambert-St Louis
Mon 8/10
6:51 pm-1:25 pm
2 stops30h 34m
$1,447
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Sat 5/23
4:45 pm-3:46 pm
3 stops35h 01m
Lambert-St Louis
Mon 6/1
7:41 pm-11:20 am
2 stops27h 39m
$1,739
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Sat 5/23
7:00 am-3:46 pm
3 stops44h 46m
Lambert-St Louis
Mon 6/1
9:06 am-9:35 am
3 stops36h 29m
$1,832
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Thu 4/23
5:30 pm-10:35 am
2 stops29h 05m
Lambert-St Louis
Tue 4/28
8:25 am-9:45 am
2 stops37h 20m
$1,974
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Thu 4/9
3:45 pm-4:56 pm
3 stops37h 11m
Lambert-St Louis
Thu 9/10
3:02 pm-9:35 am
3 stops30h 33m
$2,024
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Thu 4/23
9:35 am-5:50 am
2 stops32h 15m
Lambert-St Louis
Tue 4/28
11:15 am-9:35 am
3 stops34h 20m
$6,637
Cheapest one-way
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Tue 6/2
1:20 pm-2:50 pm
3 stops37h 30m
$604
Showing 1-10 of 17 resultsSorted by cheapest first
Best time to book a flight from Thailand to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Thailand with our price prediction graph.
BKK-STL
HKT-STL
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 Thailand to St. Louis
TH0-STL
BKK-STL
HKT-STL
What is the cheapest time of day to fly from TH to STL?
Find hourly flight availability from Thailand to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 26, 2026.
When flying from Thailand to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 20% versus a flight in the morning.
What is the cheapest day to fly from Thailand to St. Louis?
Use this chart to determine the cheapest time to fly round-trip from Thailand to St. Louis. Price data was last updated on March 30, 2025.
Travelers seeking maximum savings on their Thailand to St. Louis flight should consider departing on Saturday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated March 26, 2026.
Get a feel of what it's like to fly with Japan Airlines and United Airlines from Thailand to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.7
Entertainment
7.8
Overall
8.3
Boarding
8.4
Comfort
8.2
Food
7.7
Reviews
1 / 20
8.0
ExcellentEvan,Feb 2026
NRT - ORD
Crew
8.7
Entertainment
7.8
Overall
8.3
Boarding
8.4
Comfort
8.2
Food
7.7
Reviews
1 / 20
8.0
ExcellentEvan,Feb 2026
NRT - ORD
Crew
8.7
Entertainment
7.8
Overall
8.3
Boarding
8.4
Comfort
8.2
Food
7.7
Reviews
1 / 20
8.0
ExcellentEvan,Feb 2026
NRT - ORD
Related info for your journey
Find useful and relevant information for your journey from Thailand to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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Alternative routes for Thailand to St. Louis
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Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
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Thailand and St. Louis flights
Browse other Thailand and St. Louis flight options. Last updated on March 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 26, 2026.
Top 2 airlines flying from Thailand to St. Louis
Discover the top 2 airlines that operate flights from Thailand to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$952 | Average$1,236 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$1,410 | Average$1,415 | FlexibilityNo cancel fee | On-time69% |