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Cheap flights from Bangkok to St. Louis from ฿20,814

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 19/11. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — STL
7 Aug — 14 Aug1
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 July 2026.

Wed 28/1007:55
BKK
-
STL
2 stops27h 51m
Cathay Pacific
Wed 4/1111:39
STL
-
BKK
2 stops34h 01m
Cathay Pacific
Deal found 4/7฿35,999
Wed 28/1010:55
BKK
-
STL
2 stops37h 40m
Multiple Airlines
Fri 6/1119:20
STL
-
BKK
2 stops32h 25m
Multiple Airlines
Deal found 4/7฿36,565
Tue 27/1002:35
BKK
-
STL
2 stops32h 50m
Multiple Airlines
Thu 5/1115:11
STL
-
BKK
2 stops32h 54m
Multiple Airlines
Deal found 4/7฿37,065
Mon 10/819:10
BKK
-
STL
2 stops40h 32m
Cathay Pacific
Fri 28/810:16
STL
-
BKK
2 stops35h 44m
Cathay Pacific
Deal found 6/7฿38,064
Wed 28/1017:50
BKK
-
STL
3 stops40h 55m
Multiple Airlines
Wed 4/1108:30
STL
-
BKK
2 stops39h 35m
Multiple Airlines
Deal found 4/7฿40,062
Thu 29/1017:40
BKK
-
STL
2 stops39h 28m
Cathay Pacific
Mon 2/1107:00
STL
-
BKK
2 stops40h 05m
Cathay Pacific
Deal found 7/7฿40,428
Thu 20/816:45
BKK
-
STL
2 stops33h 21m
Multiple Airlines
Thu 27/819:36
STL
-
BKK
2 stops27h 14m
Multiple Airlines
Deal found 6/7฿42,360
Wed 23/900:30
BKK
-
STL
2 stops35h 00m
Japan Airlines
Mon 28/908:30
STL
-
BKK
2 stops26h 30m
Japan Airlines
Deal found 6/7฿44,758

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 July 2026.

Round-trip from

฿35,999

One-way from

฿20,814

Popular in

July

Cheapest in

February

Average price

฿66,804
Cathay Pacific
  • Cathay Pacific
  • 28/10-4/11
  • 4 total stops
  • 61h 52m total
  • Bangkok to St. Louis
Search Deals
19/11
  • 19/11
  • 2 total stops
  • 43h 25m total
  • Bangkok to St. Louis
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (฿280,829 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿49,359 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 July 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

Tue 27/10

02:35-23:25

2 stops32h 50m

Lambert-St Louis

Thu 5/11

15:11-13:05

2 stops32h 54m

฿37,065

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 10/8

19:10-23:42

2 stops40h 32m

Lambert-St Louis

Fri 28/8

10:16-10:00

2 stops35h 44m

฿38,064

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 29/10

17:40-21:08

2 stops39h 28m

Lambert-St Louis

Mon 2/11

07:00-12:05

2 stops40h 05m

฿40,428

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 23/9

00:30-23:30

2 stops35h 00m

Lambert-St Louis

Mon 28/9

08:30-23:00

2 stops26h 30m

฿44,758

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 29/10

09:10-21:13

2 stops24h 03m

Lambert-St Louis

Mon 2/11

14:56-11:30

3 stops31h 34m

฿48,954
Fastest return journey

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 24/9

07:00-16:37

2 stops21h 37m

Lambert-St Louis

Mon 28/9

13:36-09:35

3 stops31h 59m

฿49,054
Cheapest one-way

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 19/11

17:50-00:15

2 stops43h 25m

฿20,814
Fastest single journey

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 2/8

11:00-21:48

2 stops22h 48m

฿24,410

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 19/11

16:55-10:05

3 stops30h 10m

฿32,303

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 4/1

08:15-23:59

2 stops52h 44m

฿34,501

Flights are sorted by cheapest return flights first.

Deals found on 5/7

Sorted by cheapest first

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 35h. Cathay Pacific provides one of the quickest options available for as low as ฿44,758. 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

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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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