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Cheap flights from Thailand to St. Louis from ฿19,962

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — STL
30 Apr — 7 May1
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 31 March 2026.

Fri 30/1001:50
BKK
-
STL
2 stops50h 40m
Multiple Airlines
Sat 14/1116:15
STL
-
BKK
2 stops49h 15m
Multiple Airlines
Deal found 30/3฿35,263
Mon 4/507:55
BKK
-
STL
2 stops39h 52m
Japan Airlines
Wed 6/506:21
STL
-
BKK
2 stops35h 24m
Japan Airlines
Deal found 31/3฿36,510
Wed 9/907:05
BKK
-
STL
2 stops52h 45m
แอร์แคนาดา
Sat 12/910:24
STL
-
BKK
2 stops30h 41m
แอร์แคนาดา
Deal found 27/3฿36,707
Sat 23/515:10
BKK
-
STL
2 stops39h 07m
EVA Air
Fri 21/819:34
STL
-
BKK
2 stops27h 46m
EVA Air
Deal found 30/3฿37,101
Sat 31/1023:15
BKK
-
STL
2 stops36h 48m
เดลต้า
Sat 14/1106:45
STL
-
BKK
2 stops41h 40m
เดลต้า
Deal found 27/3฿38,776
Mon 29/607:05
BKK
-
STL
2 stops49h 38m
แอร์แคนาดา
Mon 13/708:55
STL
-
BKK
2 stops27h 00m
แอร์แคนาดา
Deal found 31/3฿41,566
Tue 3/1123:55
HKT
-
STL
2 stops36h 47m
Qatar Airways
Sat 7/1108:40
STL
-
HKT
2 stops32h 10m
Qatar Airways
Deal found 27/3฿48,363

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 31 March 2026.

Round-trip from

฿36,707

One-way from

฿19,962

Popular in

March

Cheapest in

February

Average price

฿60,051
แอร์แคนาดา
  • แอร์แคนาดา
  • 9/9-12/9
  • 4 total stops
  • 83h 26m total
  • Thailand to St. Louis
Search Deals
Qatar Airways
  • Qatar Airways
  • 20/4
  • 2 total stops
  • 40h 19m total
  • Thailand to St. Louis
Search Deals
High demand for flights, 4% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿48,198 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 31 March 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

Wed 9/9

07:05-23:50

2 stops52h 45m

Lambert-St Louis

Sat 12/9

10:24-05:05

2 stops30h 41m

฿36,707
Fastest return journey

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 23/5

16:45-15:46

3 stops35h 01m

Lambert-St Louis

Fri 21/8

19:34-11:20

2 stops27h 46m

฿45,638

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 9/9

09:35-18:24

2 stops44h 49m

Lambert-St Louis

Sat 12/9

17:32-09:35

3 stops28h 03m

฿45,966

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 2/7

15:45-15:46

3 stops36h 01m

Lambert-St Louis

Sun 12/7

06:00-23:55

2 stops29h 55m

฿56,111
Cheapest one-way

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 11/5

23:30-18:06

3 stops54h 36m

฿20,159
Fastest single journey

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 10/5

09:50-23:21

2 stops25h 31m

฿22,326

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 4/6

09:50-23:59

2 stops26h 09m

฿24,132

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 18/6

13:10-13:55

2 stops36h 45m

฿24,526

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 22/8

13:20-12:20

2 stops35h 00m

฿25,019

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 1/6

02:35-23:21

2 stops32h 46m

฿26,004

Flights are sorted by cheapest return flights first.

Deals found on 30/3

Showing 1-10 of 14 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.

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 31 March 2026.
Read reviews from past customers who have flown with Japan Airlines from Thailand to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very Good
1,759 reviews
Check prices

Overall

8.3

Comfort

8.2

Boarding

8.4

Crew

8.7

Entertainment

7.8

Food

7.7

Reviews

1 / 20
8.0
Excellent

Evan,Feb 2026

NRT - ORD

They didn't get my order for vegetarian meals, and the non-veggie options were mediocre. But the crew was very nice an tried to help as well as they could.
Japan Airlines
8.3
Very Good
1,759 reviews
Japan Airlines
8.3
Very Good
1,759 reviews
Check prices

Overall

8.3

Comfort

8.2

Boarding

8.4

Crew

8.7

Entertainment

7.8

Food

7.7

Reviews

1 / 20
8.0
Excellent

Evan,Feb 2026

NRT - ORD

They didn't get my order for vegetarian meals, and the non-veggie options were mediocre. But the crew was very nice an tried to help as well as they could.

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?

    แอร์แคนาดา can get you from Thailand to St. Louis in just under 52h 45m. Your travel time can differ by up to . The distance from Thailand to St. Louis is about 14061 km.

  • 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

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Thailand to St. Louis

Discover the top airline 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 17,341 searches. Data last updated 31 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest฿39,086Average฿44,859FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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