$607+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — STL
Apr 16 — Apr 231
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
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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 17, 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 17, 2026.
This Korean Air deal was found by Cheapflights users on 3/15. 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 9/1611:25 pm
HKT
- STL
2 stops35h 36m
Korean Air
Sun 9/206:45 am
STL
- HKT
2 stops27h 25m
Korean Air
Deal found 3/15![Korean Air logo]()
$1,203
This CheapOair deal was found by Cheapflights users on 3/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:55 am
BKK
- STL
2 stops42h 08m
Japan Airlines
Wed 5/66:21 am
STL
- BKK
2 stops35h 24m
Japan Airlines
Deal found 3/15![Japan Airlines logo]()
$1,224
This Japan Airlines deal was found by Cheapflights users on 3/13. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/289:40 pm
BKK
- STL
2 stops37h 28m
Japan Airlines
Tue 9/17:23 am
STL
- BKK
2 stops34h 22m
Japan Airlines
Deal found 3/13![Japan Airlines logo]()
$1,271
This United Airlines deal was found by Cheapflights users on 3/13. 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 8/289:35 am
BKK
- STL
2 stops44h 49m
United Airlines
Tue 9/15:32 pm
STL
- BKK
3 stops28h 03m
United Airlines
Deal found 3/13![United Airlines logo]()
$1,416
This United Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/293:45 pm
BKK
- STL
2 stops50h 02m
United Airlines
Wed 5/62:35 pm
STL
- BKK
3 stops31h 00m
United Airlines
Deal found 3/15![United Airlines logo]()
$1,425
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 17, 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 17, 2026.
This Japan Airlines deal was found by Cheapflights users on 3/13. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/289:40 pm
BKK
- STL
2 stops37h 28m
Japan Airlines
Tue 9/17:23 am
STL
- BKK
2 stops34h 22m
Japan Airlines
Deal found 3/13![Japan Airlines logo]()
$1,271
This United Airlines deal was found by Cheapflights users on 3/13. 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 8/289:35 am
BKK
- STL
2 stops44h 49m
United Airlines
Tue 9/15:32 pm
STL
- BKK
3 stops28h 03m
United Airlines
Deal found 3/13![United Airlines logo]()
$1,416
This United Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/293:45 pm
BKK
- STL
2 stops50h 02m
United Airlines
Wed 5/62:35 pm
STL
- BKK
3 stops31h 00m
United Airlines
Deal found 3/15![United Airlines logo]()
$1,425
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/299:40 pm
BKK
- STL
2 stops38h 19m
Multiple Airlines
Wed 5/63:30 pm
STL
- BKK
1 stop26h 55m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$4,837
Last-minute flights from Thailand to St. LouisDiscover last-minute flight deals from Thailand to St. Louis. Data last updated March 17, 2026 and is based on user searches.
Discover last-minute flight deals from Thailand to St. Louis. Data last updated March 17, 2026 and is based on user searches.
This EaseMyTrip deal was found by Cheapflights users on 3/12. 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/203:05 pm
BKK
- STL
2 stops38h 55m
Cathay Pacific
Sat 3/2810:33 am
STL
- BKK
2 stops35h 27m
Cathay Pacific
Deal found 3/12![Cathay Pacific logo]()
$1,538
This United Airlines deal was found by Cheapflights users on 3/12. 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 3/204:55 pm
BKK
- STL
3 stops39h 50m
United Airlines
Sat 3/289:00 am
STL
- BKK
3 stops60h 35m
United Airlines
Deal found 3/12![United Airlines logo]()
$2,895
This Delta deal was found by Cheapflights users on 3/16. 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 3/2312:55 am
BKK
- STL
2 stops35h 26m
Delta
Tue 3/316:29 am
STL
- BKK
2 stops43h 06m
Delta
Deal found 3/16![Delta logo]()
$2,234
This United Airlines deal was found by Cheapflights users on 3/16. 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 3/244:55 pm
BKK
- STL
3 stops39h 46m
United Airlines
Tue 3/318:30 am
STL
- BKK
2 stops37h 05m
United Airlines
Deal found 3/16![United Airlines logo]()
$2,456
This Kiwi.com deal was found by Cheapflights users on 3/16. 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 3/2411:40 pm
BKK
- STL
1 stop27h 15m
Multiple Airlines
Tue 3/313:50 pm
STL
- BKK
2 stops33h 15m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$5,443
This Emirates deal was found by Cheapflights users on 3/15. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/111:15 am
BKK
- STL
2 stops31h 58m
Emirates
Sun 4/193:15 pm
STL
- BKK
2 stops39h 05m
Emirates
Deal found 3/15![Emirates logo]()
$3,162
This CheapOair deal was found by Cheapflights users on 3/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:55 am
BKK
- STL
2 stops42h 08m
Japan Airlines
Wed 5/66:21 am
STL
- BKK
2 stops35h 24m
Japan Airlines
Deal found 3/15![Japan Airlines logo]()
$1,224
This United Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/293:45 pm
BKK
- STL
2 stops50h 02m
United Airlines
Wed 5/62:35 pm
STL
- BKK
3 stops31h 00m
United Airlines
Deal found 3/15![United Airlines logo]()
$1,425
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/299:40 pm
BKK
- STL
2 stops38h 19m
Multiple Airlines
Wed 5/63:30 pm
STL
- BKK
1 stop26h 55m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$4,837
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 17, 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 17, 2026.
This Delta deal was found by Cheapflights users on 3/13. 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 4/219:50 am
BKK
- STL
2 stops37h 42m
Delta
Deal found 3/13![Delta logo]()
$607
This Delta deal was found by Cheapflights users on 3/12. 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 6/1311:25 pm
HKT
- STL
2 stops37h 11m
Delta
Deal found 3/12![Delta logo]()
$612
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/2110:45 pm
BKK
- STL
3 stops56h 36m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$628
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 6/111:25 pm
BKK
- STL
3 stops39h 08m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$658
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 6/111:10 am
BKK
- STL
3 stops54h 03m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$662
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 6/1511:35 pm
BKK
- STL
3 stops50h 20m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$670
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 6/131:10 am
BKK
- STL
3 stops54h 03m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$673
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 6/1510:25 pm
HKT
- STL
3 stops54h 08m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$678
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 6/1111:15 am
HKT
- STL
3 stops48h 43m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$686
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 6/1311:20 am
BKK
- STL
3 stops42h 25m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$734
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 7/21:25 pm
BKK
- STL
3 stops54h 22m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$762
This China Airlines deal was found by Cheapflights users on 3/15. 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 8/221:20 pm
BKK
- STL
2 stops35h 00m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$796
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 17, 2026.
Round-trip from | $1,224 (CheapOair) |
|---|---|
One-way from | $607 (Delta) |
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 17, 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
Fri 8/28
9:40 pm-11:08 pm
2 stops37h 28m
Lambert-St Louis
Tue 9/1
7:23 am-5:45 am
2 stops34h 22m
$1,271
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Fri 8/28
9:35 am-6:24 pm
2 stops44h 49m
Lambert-St Louis
Tue 9/1
5:32 pm-9:35 am
3 stops28h 03m
$1,416
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Wed 4/29
3:45 pm-5:47 am
2 stops50h 02m
Lambert-St Louis
Wed 5/6
2:35 pm-9:35 am
3 stops31h 00m
$1,425
Quickest round-trip
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Wed 4/29
9:40 pm-11:59 pm
2 stops38h 19m
Lambert-St Louis
Wed 5/6
3:30 pm-6:25 am
1 stop26h 55m
$4,837
Cheapest one-way
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Tue 4/21
9:50 am-11:32 am
2 stops37h 42m
$607
Phuket CitySt. Louis
HKT - STL
HKTSTL
Phuket City
Sat 6/13
11:25 pm-12:36 am
2 stops37h 11m
$612
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Tue 4/21
10:45 pm-7:21 pm
3 stops56h 36m
$628
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Thu 6/11
1:25 pm-4:33 pm
3 stops39h 08m
$658
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Thu 6/11
1:10 am-7:13 pm
3 stops54h 03m
$662
BangkokSt. Louis
BKK - STL
BKKSTL
Bangkok Suvarnabhumi
Mon 6/15
11:35 pm-1:55 pm
3 stops50h 20m
$670
Showing 1-10 of 19 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 17, 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 17, 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.
Overall
8.3
Comfort
8.2
Food
7.7
Crew
8.7
Entertainment
7.8
Boarding
8.4
Reviews
1 / 20
8.0
ExcellentEvan,Feb 2026
NRT - ORD
Overall
8.3
Comfort
8.2
Food
7.7
Crew
8.7
Entertainment
7.8
Boarding
8.4
Reviews
1 / 20
8.0
ExcellentEvan,Feb 2026
NRT - ORD
Overall
8.3
Comfort
8.2
Food
7.7
Crew
8.7
Entertainment
7.8
Boarding
8.4
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
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Thailand to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Thailand and St. Louis flights
Browse other Thailand and St. Louis flight options. Last updated on March 17, 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 17, 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 17, 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% |