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Cheap flights from Bangkok to St. Louis from ฿16,500

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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — STL
9 Mar — 16 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Bangkok to St. Louis

Enter your travel dates to find the best prices.

Cheapest flights from Bangkok to St. Louis
Explore the most affordable flight options available from Bangkok to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 February 2026.

Wed 18/213:20
BKK
-
STL
2 stops37h 31m
Philippine Airlines
Wed 4/307:00
STL
-
BKK
2 stops40h 00m
Philippine Airlines
Deal found 4/2฿33,094
Thu 23/417:30
BKK
-
STL
2 stops39h 35m
Multiple Airlines
Fri 1/508:25
STL
-
BKK
2 stops39h 45m
Multiple Airlines
Deal found 5/2฿35,865
Tue 17/217:40
BKK
-
STL
2 stops42h 42m
Cathay Pacific
Tue 3/310:37
STL
-
BKK
2 stops40h 18m
Cathay Pacific
Deal found 4/2฿36,746
Wed 26/800:30
BKK
-
STL
2 stops34h 38m
Japan Airlines
Mon 31/820:00
STL
-
BKK
2 stops55h 10m
Japan Airlines
Deal found 5/2฿37,912
Tue 10/218:45
BKK
-
STL
2 stops66h 14m
Multiple Airlines
Tue 12/507:00
STL
-
BKK
2 stops41h 10m
Multiple Airlines
Deal found 4/2฿38,699
Mon 23/312:45
BKK
-
STL
2 stops47h 13m
Cathay Pacific
Mon 30/308:00
STL
-
BKK
2 stops28h 10m
Cathay Pacific
Deal found 5/2฿39,329
Sat 7/208:15
BKK
-
STL
2 stops44h 48m
แอร์แคนาดา
Wed 13/513:00
STL
-
BKK
2 stops28h 05m
แอร์แคนาดา
Deal found 4/2฿40,525
Sat 7/208:15
BKK
-
STL
2 stops39h 47m
แอร์แคนาดา
Sun 10/507:30
STL
-
BKK
2 stops57h 35m
แอร์แคนาดา
Deal found 4/2฿40,682
Sat 7/208:15
BKK
-
STL
2 stops41h 14m
แอร์แคนาดา
Mon 11/514:20
STL
-
BKK
2 stops44h 50m
แอร์แคนาดา
Deal found 4/2฿40,903

Find flight deals from Bangkok to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 7 February 2026.

Round-trip from

฿33,094

One-way from

฿16,500

Popular in

December

Cheapest in

February

Average price

฿29,977
Philippine Airlines
  • Philippine Airlines
  • 18/2-4/3
  • 4 total stops
  • 77h 31m total
  • Bangkok to St. Louis
Search Deals
9/3
  • 9/3
  • 3 total stops
  • 45h 27m total
  • Bangkok to St. Louis
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (฿157,895 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿25,995 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Bangkok 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 7 February 2026.
Use the filters below to find and compare flights from Bangkok to St. Louis that are best for you.

Fly from

Bangkok

Fly to

St. Louis

Route

Depart

Return

Price

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 23/4

17:30-21:05

2 stops39h 35m

Lambert-St Louis

Fri 1/5

08:25-12:10

2 stops39h 45m

฿35,865

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 17/2

16:55-23:22

2 stops43h 27m

Lambert-St Louis

Wed 4/3

10:37-00:15

2 stops24h 38m

฿36,746

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 23/3

12:45-23:58

2 stops47h 13m

Lambert-St Louis

Mon 30/3

08:00-00:10

2 stops28h 10m

฿39,329

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 17/2

17:40-23:22

2 stops42h 42m

Lambert-St Louis

Sun 1/3

18:50-16:40

2 stops32h 50m

฿41,218

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 17/2

17:40-23:22

2 stops42h 42m

Lambert-St Louis

Sat 7/3

18:18-10:40

2 stops27h 22m

฿41,218

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 17/2

16:55-23:22

2 stops43h 27m

Lambert-St Louis

Fri 6/3

18:50-11:15

2 stops27h 25m

฿43,705

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 18/2

07:55-23:22

2 stops28h 27m

Lambert-St Louis

Fri 6/3

18:50-11:15

2 stops27h 25m

฿43,705

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 23/3

16:55-23:34

3 stops42h 39m

Lambert-St Louis

Mon 30/3

14:40-09:35

3 stops30h 55m

฿45,122

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 19/2

16:55-09:23

3 stops29h 28m

Lambert-St Louis

Sun 1/3

07:41-11:25

3 stops38h 44m

฿45,280

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 18/2

16:55-09:23

3 stops29h 28m

Lambert-St Louis

Wed 4/3

08:30-11:25

3 stops61h 55m

฿45,280

Flights are sorted by cheapest return flights first.

Deals found on 6/2

Showing 1-10 of 20 results
1
2

Best time to book a flight from Bangkok to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Bangkok 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 Bangkok 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 7 February 2026.
Read reviews from past customers who have flown with Japan Airlines from Bangkok 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
1,701 reviews
Check prices

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Crew

8.7

Overall

8.3

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

BKK - NRT

Everything was was a great experience, the staff was very friendly and always had a smile on the face.
Japan Airlines
8.3
Very Good
1,701 reviews
Japan Airlines
8.3
Very Good
1,701 reviews
Check prices

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Crew

8.7

Overall

8.3

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

BKK - NRT

Everything was was a great experience, the staff was very friendly and always had a smile on the face.

Related info for your journey

Find useful and relevant information for your journey from Bangkok 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 Bangkok?

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Bangkok. On average, Lambert-St Louis has 0 inbound flights from Bangkok per day from 1 airline. Lambert-St Louis is conveniently located just 20.4 km from St. Louis’s city centre.

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

    A quick flight from Bangkok to St. Louis can take about 43h 27m. Cathay Pacific provides one of the quickest options available for as low as ฿36,746. Bangkok and St. Louis are separated by a distance of 14061 km.

  • What is the cheapest airline to fly from Bangkok to St. Louis round-trip?

    Japan Airlines, at ฿37,485, was found to be the cheapest airline from Bangkok to St. Louis.. Japan Airlines is currently priced 11% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bangkok 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Bangkok to St. Louis

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Top airline flying from Bangkok to St. Louis

Discover the top airline that operate flights from Bangkok 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 7 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest฿37,485Average฿43,069FlexibilityNo 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 Bangkok to St. Louis?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Bangkok to St. Louis. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Bangkok 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 Bangkok to St. Louis with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Bangkok to St. Louis, users can toggle the no change fees filter when performing a flight search.

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

Yes! Start tracking prices for Bangkok to St. Louis flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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