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฿17,141+ Cheap flights to St. Louis

— STL
4 Oct — 11 Oct1
1 adult
1 adult, Economy, 0 bags

Flights to St. Louis in 2026

Enter your travel dates to find the best prices.

Cheapest flights to St. Louis

Thu 17/921:40 -
2 stops48h 38m
Thu 1/1008:30 -
2 stops33h 15m
Deal found 4/9฿35,831
Wed 9/917:50 -
2 stops56h 31m
Wed 23/915:19 -
2 stops37h 21m
Deal found 3/9฿36,260
Sat 5/909:40 -
2 stops25h 19m
Sun 6/905:00 -
2 stops30h 00m
Deal found 2/9฿37,183
Thu 17/917:30 -
2 stops42h 25m
Thu 1/1006:00 -
2 stops46h 20m
Deal found 1/9฿38,369
Thu 3/907:35 -
2 stops28h 24m
Wed 9/906:30 -
2 stops44h 55m
Deal found 2/9฿39,259
Thu 10/907:55 -
2 stops22h 43m
Mon 14/907:21 -
2 stops43h 49m
Deal found 3/9฿39,358
Fri 11/921:40 -
2 stops37h 50m
Mon 14/907:21 -
2 stops34h 24m
Deal found 30/8฿41,765
Thu 10/909:35 -
2 stops38h 22m
Mon 14/917:30 -
3 stops28h 05m
Deal found 2/9฿48,423
Sat 5/915:45 -
3 stops28h 54m
Sun 6/910:53 -
3 stops34h 42m
Deal found 2/9฿48,555

Find flight deals to St. Louis

Return from

฿35,831

One-way from

฿17,141

Popular in

July

Cheapest in

February

Average price

฿43,578
Japan Airlines
  • Japan Airlines
  • 17/9-1/10
  • 4 total stops
  • 81h 53m total
  • Bangkok to St. Louis
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12/10-31/12
  • 12/10-31/12
  • 3 total stops
  • 52h 39m total
  • Bangkok to St. Louis
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (฿10,235 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (฿1,682 potential savings vs. average return price).
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Average for return flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights to St. Louis that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Mon 12/10

22:45-15:24

3 stops52h 39m

Lambert-St Louis

Wed 31/12

00:00-13:00

Nonstop0h 00m

฿17,141
Fastest return journey

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Sun 28/2

13:45-23:44

2 stops22h 59m

Lambert-St Louis

Wed 31/12

00:00-13:00

Nonstop0h 00m

฿20,470

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Thu 19/11

14:05-19:00

2 stops41h 55m

Lambert-St Louis

Wed 31/12

00:00-13:00

Nonstop0h 00m

฿20,635

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Tue 17/11

02:35-22:05

2 stops32h 30m

Lambert-St Louis

Wed 31/12

00:00-13:00

Nonstop0h 00m

฿20,668

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Sun 11/10

10:50-00:45

2 stops25h 55m

Lambert-St Louis

Wed 31/12

00:00-13:00

Nonstop0h 00m

฿20,701

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Fri 9/10

03:00-23:59

2 stops32h 59m

Lambert-St Louis

Wed 31/12

00:00-13:00

Nonstop0h 00m

฿21,294

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Mon 14/9

13:20-18:38

2 stops41h 18m

Lambert-St Louis

Wed 31/12

00:00-13:00

Nonstop0h 00m

฿21,459

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Thu 17/9

21:40-10:18

2 stops48h 38m

Lambert-St Louis

Thu 1/10

08:30-05:45

2 stops33h 15m

฿35,831

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Thu 17/9

17:30-23:55

2 stops42h 25m

Lambert-St Louis

Thu 1/10

06:00-16:20

2 stops46h 20m

฿38,369

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Thu 17/9

07:00-21:36

2 stops26h 36m

Lambert-St Louis

Thu 1/10

13:36-09:35

3 stops31h 59m

฿49,082

Flights are sorted by cheapest return flights first.

Deals found on 3/9

Showing 1-10 of 12 resultsSorted by cheapest first
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Best time to book a flight to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight to St. Louis

How long is the flight to St. Louis?

On average, a flight from Bangkok to St. Louis takes 22 hours 43 minutes. Flights to St. Louis from other popular cities in Thailand will vary in length. Below are a few examples of popular routes and their flight times.

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 mm per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

FAQs about flying to St. Louis

  • What airport do you fly into for flights to St. Louis?

    Booking a flight to Lambert-St Louis (STL) is your only option if you intend on flying to St. Louis. It is only a 20.4 km journey from Lambert-St Louis to St. Louis’s city centre.

  • Can I find cheaper flights to St. Louis if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to St. Louis on Cheapflights that require 1 or 2 stops for potential cost savings.

  • Where does the fastest flight to St. Louis depart from?

    For those looking to save time traveling to St. Louis, Bangkok offers the quickest one-way flight (22 hours 43 minutes).

  • Does Lambert-St Louis have rental cars?

    Yes. Those touching down at Lambert-St Louis can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Lambert-St Louis?

    Yes. Lambert-St Louis has hotels nearby for those requiring accommodations. St Ann Townhome Less Than 1 Mi to International Airport! is the closest property to Lambert-St Louis (0.0 km away from Lambert-St Louis).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Deals for St. Louis flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets to St. Louis?

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Can Cheapflights find flights to St. Louis with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights to St. Louis flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights to St. Louis become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to St. Louis today and book when you’re ready!

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