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Cheap flights from Bangkok to St. Louis from ฿15,425

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 22/12. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — STL
4 Jan — 11 Jan1
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 5 December 2025.

Wed 24/1213:20BKK - STL
2 stops47h 39mMultiple Airlines
Fri 9/114:50STL - BKK
2 stops32h 10mMultiple Airlines
Deal found 5/12฿29,313
Fri 19/1216:55BKK - STL
2 stops36h 51mCathay Pacific
Sat 27/1218:44STL - BKK
2 stops26h 56mCathay Pacific
Deal found 3/12฿45,442
Wed 24/1216:55BKK - STL
3 stops29h 54mUnited Airlines
Fri 9/108:30STL - BKK
3 stops37h 55mUnited Airlines
Deal found 5/12฿45,794
Sat 20/1222:05BKK - STL
2 stops31h 41mJapan Airlines
Sat 27/1206:20STL - BKK
2 stops57h 45mJapan Airlines
Deal found 3/12฿49,698
Fri 19/1208:05BKK - STL
2 stops21h 41mJapan Airlines
Sat 27/1206:20STL - BKK
2 stops57h 45mJapan Airlines
Deal found 4/12฿54,338
Sat 20/1216:55BKK - STL
2 stops36h 51mCathay Pacific
Sat 27/1209:08STL - BKK
2 stops36h 32mCathay Pacific
Deal found 5/12฿56,099
Sat 20/1216:55BKK - STL
3 stops42h 27mUnited Airlines
Sat 27/1206:00STL - BKK
3 stops40h 25mUnited Airlines
Deal found 4/12฿66,051
Fri 19/1216:55BKK - STL
3 stops42h 27mUnited Airlines
Sat 27/1218:35STL - BKK
2 stops45h 35mUnited Airlines
Deal found 3/12฿66,851

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 5 December 2025.

Round-trip from

฿29,313

One-way from

฿15,425

Popular in

January

Cheapest in

February

Average price

฿42,786
24/12-9/1
  • 24/12-9/1
  • 4 total stops
  • 79h 49m total
  • Bangkok to St. Louis
Search Deals
22/12
  • 22/12
  • 3 total stops
  • 52h 14m total
  • Bangkok to St. Louis
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (฿18,572 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿24,182 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 5 December 2025.
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

Wed 24/12

13:20-23:59

2 stops47h 39m

Lambert-St Louis

Fri 9/1

14:50-12:00

2 stops32h 10m

฿29,313

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 26/1

09:55-23:59

2 stops51h 04m

Lambert-St Louis

Wed 28/1

06:00-16:25

2 stops45h 25m

฿30,849

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 17/2

08:05-23:48

2 stops28h 43m

Lambert-St Louis

Thu 19/2

06:00-16:25

2 stops45h 25m

฿44,354

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 17/2

07:10-09:23

2 stops39h 13m

Lambert-St Louis

Thu 19/2

08:41-11:25

3 stops37h 44m

฿45,538

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 26/1

07:10-20:58

2 stops26h 48m

Lambert-St Louis

Wed 28/1

11:20-11:25

3 stops35h 05m

฿45,538

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 24/12

16:55-09:49

3 stops29h 54m

Lambert-St Louis

Fri 9/1

08:30-11:25

3 stops37h 55m

฿45,794

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 6/1

09:55-23:59

2 stops27h 04m

Lambert-St Louis

Fri 9/1

06:00-23:35

2 stops28h 35m

฿47,970

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 22/12

01:10-16:24

3 stops52h 14m

฿15,425

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 24/12

19:10-23:59

3 stops41h 49m

฿18,113

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 25/12

08:15-15:29

2 stops44h 14m

฿18,433

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 14 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 5 December 2025.
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
1,638 reviews
Check prices

Boarding

8.4

Food

7.7

Entertainment

7.8

Comfort

8.2

Overall

8.3

Crew

8.7

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
1,638 reviews
Japan Airlines
8.3
Very Good
1,638 reviews
Check prices

Boarding

8.4

Food

7.7

Entertainment

7.8

Comfort

8.2

Overall

8.3

Crew

8.7

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 39h 13m. Japan Airlines provides one of the quickest options available for as low as ฿45,538. Bangkok and St. Louis are separated by a distance of 14061 km. This flight may include one or multiple stops.

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

    Japan Airlines, at ฿38,096, was found to be the cheapest airline from Bangkok to St. Louis.. Japan Airlines is currently priced 8% 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

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Alternative routes for Bangkok 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 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 5 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest฿38,096Average฿43,731FlexibilityNo 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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