Find flights
When to book
FAQs

Cheap flights from Bangkok to St. Louis from ฿19,843

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — STL
12 Jun — 19 Jun1
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 13 May 2026.

Mon 29/607:45
BKK
-
STL
2 stops40h 36m
แอร์แคนาดา
Tue 25/812:10
STL
-
BKK
2 stops52h 55m
แอร์แคนาดา
Deal found 11/5฿38,973
Tue 30/603:00
BKK
-
STL
2 stops32h 59m
Multiple Airlines
Wed 26/810:16
STL
-
BKK
2 stops38h 39m
Multiple Airlines
Deal found 11/5฿39,232
Fri 3/707:05
BKK
-
STL
2 stops42h 57m
แอร์แคนาดา
Mon 24/812:10
STL
-
BKK
2 stops28h 55m
แอร์แคนาดา
Deal found 11/5฿39,265
Mon 29/607:45
BKK
-
STL
2 stops40h 36m
แอร์แคนาดา
Thu 27/808:55
STL
-
BKK
2 stops26h 25m
แอร์แคนาดา
Deal found 11/5฿39,362
Wed 24/610:50
BKK
-
STL
2 stops24h 40m
Multiple Airlines
Tue 7/721:20
STL
-
BKK
2 stops31h 00m
Multiple Airlines
Deal found 9/5฿39,394
Mon 25/523:40
BKK
-
STL
2 stops35h 56m
Multiple Airlines
Thu 11/612:55
STL
-
BKK
2 stops37h 05m
Multiple Airlines
Deal found 12/5฿39,427
Fri 3/707:05
BKK
-
STL
2 stops49h 02m
แอร์แคนาดา
Thu 27/808:55
STL
-
BKK
2 stops26h 40m
แอร์แคนาดา
Deal found 11/5฿39,653
Mon 29/607:45
BKK
-
STL
2 stops40h 36m
แอร์แคนาดา
Sat 29/808:00
STL
-
BKK
2 stops33h 05m
แอร์แคนาดา
Deal found 11/5฿39,686
Fri 3/707:05
BKK
-
STL
2 stops42h 57m
แอร์แคนาดา
Sat 29/813:36
STL
-
BKK
2 stops27h 29m
แอร์แคนาดา
Deal found 11/5฿40,009
Wed 27/519:00
BKK
-
STL
2 stops36h 36m
Qatar Airways
Sat 13/614:50
STL
-
BKK
2 stops52h 05m
Qatar Airways
Deal found 12/5฿40,106
Wed 1/707:05
BKK
-
STL
2 stops42h 57m
แอร์แคนาดา
Mon 24/812:10
STL
-
BKK
2 stops28h 55m
แอร์แคนาดา
Deal found 11/5฿40,268
Mon 27/707:05
BKK
-
STL
2 stops66h 57m
แอร์แคนาดา
Wed 5/812:10
STL
-
BKK
2 stops28h 55m
แอร์แคนาดา
Deal found 12/5฿40,301

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 13 May 2026.

Round-trip from

฿38,973

One-way from

฿19,843

Popular in

March

Cheapest in

February

Average price

฿43,084
แอร์แคนาดา
  • แอร์แคนาดา
  • 29/6-26/8
  • 4 total stops
  • 69h 31m total
  • Bangkok to St. Louis
Search Deals
16/6
  • 16/6
  • 2 total stops
  • 33h 29m total
  • Bangkok to St. Louis
Search Deals
High demand for flights, 7% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿46,972 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 13 May 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 - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 17/9

21:05-16:42

2 stops55h 37m

Lambert-St Louis

Mon 21/9

10:14-06:20

2 stops32h 06m

฿42,955

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 4/7

09:55-00:16

2 stops50h 21m

Lambert-St Louis

Tue 25/8

06:00-06:20

2 stops36h 20m

฿47,293

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 17/9

15:45-10:09

3 stops30h 24m

Lambert-St Louis

Mon 21/9

13:36-09:35

3 stops31h 59m

฿48,102

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 24/6

09:35-11:41

2 stops62h 06m

Lambert-St Louis

Tue 7/7

05:10-09:35

3 stops40h 25m

฿48,199

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 25/6

07:00-23:44

2 stops28h 44m

Lambert-St Louis

Tue 7/7

13:38-09:35

3 stops31h 57m

฿48,296
Fastest return journey

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 23/6

07:00-23:36

2 stops28h 36m

Lambert-St Louis

Tue 7/7

13:38-09:35

3 stops31h 57m

฿48,296

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 4/7

09:55-00:16

2 stops50h 21m

Lambert-St Louis

Mon 24/8

10:16-06:20

2 stops32h 04m

฿48,620

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 25/5

15:45-15:46

3 stops36h 01m

Lambert-St Louis

Sun 7/6

06:00-04:35

2 stops34h 35m

฿50,497
Cheapest one-way

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 14/9

13:20-14:21

2 stops37h 01m

฿20,458

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 18/6

17:30-01:50

2 stops44h 20m

฿21,947

Flights are sorted by cheapest return flights first.

Deals found on 8/5

Showing 1-10 of 17 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

How much does it cost for a return flight from Bangkok to St. Louis?

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 30h 24m. Qatar Airways provides one of the quickest options available for as low as ฿48,102. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Bangkok to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Chiang Mai to Kansas City flights
Phuket City to St. Louis flights
Chiang Mai to Columbia 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.