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Cheap flights from Thailand to St. Louis from ฿20,911

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 19/11. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — STL
13 Aug — 20 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Thailand to St. Louis

Enter your travel dates to find the best prices.

Cheapest flights from Thailand to St. Louis
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 14 July 2026.

Thu 3/902:40
BKK
-
STL
2 stops33h 10m
Multiple Airlines
Sat 10/1016:40
STL
-
BKK
2 stops35h 40m
Multiple Airlines
Deal found 13/7฿37,379
Thu 29/1007:55
BKK
-
STL
2 stops26h 04m
Cathay Pacific
Mon 2/1107:00
STL
-
BKK
2 stops40h 05m
Cathay Pacific
Deal found 8/7฿38,415
Mon 2/1100:50
HKT
-
STL
2 stops35h 52m
Qatar Airways
Sat 7/1107:00
STL
-
HKT
2 stops40h 55m
Qatar Airways
Deal found 11/7฿48,336
Thu 29/1009:10
BKK
-
STL
2 stops22h 19m
United Airlines
Mon 2/1113:39
STL
-
BKK
3 stops32h 51m
United Airlines
Deal found 8/7฿48,937
Fri 9/1009:20
HKT
-
STL
2 stops50h 26m
Qatar Airways
Mon 12/1011:31
STL
-
HKT
2 stops32h 14m
Qatar Airways
Deal found 9/7฿49,171

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 14 July 2026.

Round-trip from

฿37,379

One-way from

฿20,911

Popular in

July

Cheapest in

February

Average price

฿67,009
3/9-10/10
  • 3/9-10/10
  • 4 total stops
  • 68h 50m total
  • Thailand to St. Louis
Search Deals
19/11
  • 19/11
  • 2 total stops
  • 41h 55m total
  • Thailand to St. Louis
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (฿282,560 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿49,680 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 17,341 searches. Data last updated 14 July 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

Price

Cheapest return flight

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 3/9

02:40-23:50

2 stops33h 10m

Lambert-St Louis

Sat 10/10

16:40-16:20

2 stops35h 40m

฿37,379

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 29/10

17:40-21:08

2 stops39h 28m

Lambert-St Louis

Mon 2/11

07:00-12:05

2 stops40h 05m

฿38,415

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Mon 2/11

00:50-23:42

2 stops35h 52m

Lambert-St Louis

Sat 7/11

07:00-12:55

2 stops40h 55m

฿48,336
Fastest return journey

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 29/10

09:10-19:29

2 stops22h 19m

Lambert-St Louis

Mon 2/11

13:39-11:30

3 stops32h 51m

฿48,937

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Fri 9/10

09:20-23:46

2 stops50h 26m

Lambert-St Louis

Mon 12/10

11:31-07:45

2 stops32h 14m

฿49,171
Cheapest one-way

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 19/11

17:50-19:00

2 stops38h 10m

฿20,945
Fastest single journey

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Mon 14/9

08:55-23:59

3 stops27h 04m

฿23,884

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Sun 6/12

18:35-23:57

2 stops42h 22m

฿25,421

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 21/7

02:30-23:59

2 stops33h 29m

฿25,655

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 26/7

22:45-17:37

3 stops54h 52m

฿30,699

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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.
Estimated return 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
No data available for this route at this time. Please check back soon.

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.

  • What airport do you fly into for flights to St. Louis from Thailand?

    Lambert-St Louis (STL), located 20.4 km from the city centre, is the airport you fly into when you book flights from Thailand to St. Louis.

  • How long is the flight from Thailand to St. Louis?

    Cathay Pacific and Qatar Airways can get you from Thailand to St. Louis in just under 35h 52m. Your travel time can differ by up to 3h 36m. The distance from Thailand to St. Louis is about 14717 km. This flight may include one or multiple stops.

  • Can I find deals for flights from Thailand to St. Louis that include hotel bookings?

    Yes. In addition to deals on Thailand to St. Louis flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Thailand to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Thailand to St. Louis.

  • Can I find deals for business class flights from Thailand to St. Louis?

    Yes. Cheapflights offers flight deals from Thailand to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Thailand to St. Louis

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Fly with Cheapflights

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How does Cheapflights help users find flights from Thailand to St. Louis?

Cheapflights makes it easy to find Thailand to St. Louis flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Thailand to St. Louis?

Millions of users choose and trust Cheapflights to book the best flight deals from Thailand to St. Louis for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Thailand to St. Louis with no change fees?

Yes, we can. To see specific flights from Thailand to St. Louis with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Thailand to St. Louis become cheaper?

Yes, Cheapflights offers price alerts on Thailand to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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