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Cheap flights from Bangkok to St. Louis from ฿19,155

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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — STL
7 Sep — 14 Sep1
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 8 August 2026.

Mon 21/907:05 -
2 stops25h 15m
Tue 29/908:55 -
2 stops26h 40m
Deal found 5/8฿35,701
Tue 22/917:50 -
2 stops60h 48m
Tue 29/915:19 -
2 stops37h 21m
Deal found 8/8฿35,833
Wed 14/1007:05 -
2 stops47h 36m
Sun 18/1008:55 -
2 stops56h 10m
Deal found 7/8฿36,131
Thu 1/1009:50 -
2 stops40h 10m
Wed 7/1011:35 -
2 stops29h 30m
Deal found 5/8฿36,164
Wed 21/1007:05 -
2 stops47h 36m
Fri 23/1008:00 -
2 stops33h 30m
Deal found 3/8฿36,527
Sat 10/1011:00 -
2 stops24h 42m
Mon 19/1019:10 -
2 stops26h 50m
Deal found 4/8฿37,881
Wed 23/921:40 -
2 stops37h 50m
Sun 27/911:01 -
2 stops30h 44m
Deal found 6/8฿42,208

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 8 August 2026.

Round-trip from

฿35,701

One-way from

฿19,155

Popular in

July

Cheapest in

February

Average price

฿57,069
แอร์แคนาดา
  • แอร์แคนาดา
  • 21/9-29/9
  • 4 total stops
  • 51h 55m total
  • Bangkok to St. Louis
Search Deals
14/9
  • 14/9
  • 2 total stops
  • 28h 04m total
  • Bangkok to St. Louis
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (฿276,201 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿48,546 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 8 August 2026.
Use the filters below to find and compare flights from Bangkok to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Tue 22/9

17:50-18:38

2 stops60h 48m

Lambert-St Louis

Tue 29/9

15:19-16:40

2 stops37h 21m

฿35,833

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Wed 14/10

07:05-18:41

2 stops47h 36m

Lambert-St Louis

Sun 18/10

08:55-05:05

2 stops56h 10m

฿36,131

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Wed 21/10

07:05-18:41

2 stops47h 36m

Lambert-St Louis

Fri 23/10

08:00-05:30

2 stops33h 30m

฿36,560
Fastest return journey

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Sat 10/10

11:00-23:42

2 stops24h 42m

Lambert-St Louis

Mon 19/10

19:10-10:00

2 stops26h 50m

฿37,881

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Wed 23/9

21:40-23:30

2 stops37h 50m

Lambert-St Louis

Sun 27/9

11:01-05:45

2 stops30h 44m

฿42,208

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Thu 1/10

17:30-22:45

3 stops41h 15m

Lambert-St Louis

Wed 7/10

08:35-12:10

2 stops39h 35m

฿42,769

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Wed 14/10

17:30-22:45

3 stops41h 15m

Lambert-St Louis

Sun 18/10

19:05-09:45

2 stops26h 40m

฿43,529

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Sat 10/10

15:45-10:10

3 stops30h 25m

Lambert-St Louis

Mon 19/10

16:39-09:35

3 stops28h 56m

฿48,648
Cheapest one-way

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Mon 14/9

15:55-11:32

3 stops31h 37m

฿19,915

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Wed 26/8

12:40-17:22

3 stops40h 42m

฿21,236

Flights are sorted by cheapest return flights first.

Deals found on 7/8

Showing 1-10 of 14 resultsSorted by cheapest first
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.

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 0 airlines. 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 37h 50m. แอร์แคนาดา provides one of the quickest options available for as low as ฿42,208. Bangkok and St. Louis are separated by a distance of 14061 km. This flight may include one or multiple stops.

  • 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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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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