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Cheap flights from Bangkok to St. Louis from ฿16,389

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 21/1. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — STL
26 Jan — 2 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Bangkok to St. Louis

Enter your travel dates to find the best prices.

Best flights from Bangkok to St. Louis
Discover carefully curated flight deals from Bangkok to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 December 2025.

Sun 8/214:05BKK - STL
2 stops36h 49mMultiple Airlines
Sun 15/215:19STL - BKK
2 stops29h 31mMultiple Airlines
Deal found 25/12฿32,065
Sun 8/216:55BKK - STL
3 stops44h 04mUnited Airlines
Sun 15/214:45STL - BKK
3 stops31h 40mUnited Airlines
Deal found 25/12฿45,387

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 27 December 2025.

Round-trip from

฿32,065

One-way from

฿16,389

Popular in

January

Cheapest in

June

Average price

฿39,222
8/2-15/2
  • 8/2-15/2
  • 4 total stops
  • 66h 20m total
  • Bangkok to St. Louis
Search Deals
21/1
  • 21/1
  • 2 total stops
  • 37h 34m total
  • Bangkok to St. Louis
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿23,119 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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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 27 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

Sun 8/2

14:05-13:54

2 stops36h 49m

Lambert-St Louis

Sun 15/2

15:19-09:50

2 stops29h 31m

฿32,065

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 8/2

16:55-23:59

3 stops44h 04m

Lambert-St Louis

Sun 15/2

14:45-11:25

3 stops31h 40m

฿45,387

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 22/1

13:20-23:33

3 stops47h 13m

฿17,102

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 23/1

10:55-14:46

3 stops40h 51m

฿17,442

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 24/1

17:40-12:50

3 stops56h 10m

฿17,597

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 20/1

17:50-22:20

2 stops41h 30m

฿18,279

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 18/1

17:40-13:54

2 stops57h 14m

฿18,589

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 16/1

23:45-12:40

3 stops49h 55m

฿19,208

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 19/1

13:45-13:54

2 stops37h 09m

฿19,394

Flights are sorted by cheapest return flights first.

Deals found on 25/12

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 27 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
1,662 reviews
Check prices

Comfort

8.2

Food

7.7

Entertainment

7.8

Crew

8.7

Overall

8.3

Boarding

8.4

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
1,662 reviews
Japan Airlines
8.3
Very Good
1,662 reviews
Check prices

Comfort

8.2

Food

7.7

Entertainment

7.8

Crew

8.7

Overall

8.3

Boarding

8.4

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 44h 04m. United Airlines provides one of the quickest options available for as low as ฿45,387. 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 ฿36,882, 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

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 27 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest฿36,882Average฿42,350FlexibilityNo 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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