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฿20,218+ Cheap flights to St. Louis

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 24/11. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
27 Jul — 3 Aug1
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
Explore the most affordable flight options available to St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 27 June 2026.

Tue 20/1009:50
BKK
-
STL
2 stops40h 10m
แอร์แคนาดา
Sun 25/1016:05
STL
-
BKK
2 stops44h 40m
แอร์แคนาดา
Deal found 24/6฿34,131
Thu 17/1208:15
BKK
-
STL
2 stops25h 58m
แอร์แคนาดา
Tue 9/211:25
STL
-
BKK
2 stops30h 05m
แอร์แคนาดา
Deal found 22/6฿39,936
Fri 18/1208:15
BKK
-
STL
2 stops44h 15m
แอร์แคนาดา
Tue 9/211:25
STL
-
BKK
2 stops30h 05m
แอร์แคนาดา
Deal found 22/6฿40,570
Mon 10/807:05
BKK
-
STL
2 stops45h 29m
แอร์แคนาดา
Mon 17/814:40
STL
-
BKK
2 stops26h 25m
แอร์แคนาดา
Deal found 26/6฿41,037
Fri 18/1208:25
BKK
-
STL
2 stops44h 01m
แอร์แคนาดา
Wed 30/1216:05
STL
-
BKK
2 stops43h 40m
แอร์แคนาดา
Deal found 23/6฿41,271
Thu 17/1208:15
BKK
-
STL
2 stops25h 58m
แอร์แคนาดา
Thu 11/208:33
STL
-
BKK
2 stops32h 57m
แอร์แคนาดา
Deal found 22/6฿41,404
Wed 9/900:30
BKK
-
STL
2 stops35h 10m
Japan Airlines
Mon 14/908:30
STL
-
BKK
2 stops26h 30m
Japan Airlines
Deal found 24/6฿41,671
Tue 20/1010:50
BKK
-
STL
3 stops39h 30m
Multiple Airlines
Sun 25/1016:40
STL
-
BKK
2 stops29h 10m
Multiple Airlines
Deal found 24/6฿42,038
Sat 19/1208:15
BKK
-
STL
2 stops44h 15m
แอร์แคนาดา
Tue 9/211:25
STL
-
BKK
2 stops30h 05m
แอร์แคนาดา
Deal found 22/6฿42,305

Find flight deals to St. Louis

Find the latest flights to St. Louis in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 27 June 2026.

Return from

฿34,131

One-way from

฿20,218

Popular in

July

Cheapest in

February

Average price

฿57,018
แอร์แคนาดา
  • แอร์แคนาดา
  • 20/10-25/10
  • 4 total stops
  • 84h 50m total
  • Bangkok to St. Louis
Search Deals
24/11
  • 24/11
  • 2 total stops
  • 33h 59m total
  • Bangkok to St. Louis
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (฿8,449 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿1,485 potential savings vs. average return price).
Search Deals
Average for return flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to St. Louis that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 27 June 2026.
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
Fastest return journey

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 17/12

08:15-21:13

2 stops25h 58m

Lambert-St Louis

Tue 9/2

11:25-06:30

2 stops30h 05m

฿39,936

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 9/9

00:30-23:40

2 stops35h 10m

Lambert-St Louis

Mon 14/9

08:30-23:00

2 stops26h 30m

฿41,671

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 18/12

08:15-21:13

2 stops25h 58m

Lambert-St Louis

Thu 11/2

06:00-06:30

2 stops35h 30m

฿43,806

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 10/9

09:35-12:02

2 stops38h 27m

Lambert-St Louis

Mon 14/9

17:30-09:35

3 stops28h 05m

฿47,977
Cheapest one-way

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 19/11

23:55-15:26

2 stops52h 31m

฿21,152

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 17/8

17:30-17:50

2 stops36h 20m

฿25,289

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 17/12

17:50-14:00

3 stops33h 10m

฿27,391
Fastest single journey

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 19/11

16:55-10:41

3 stops30h 46m

฿31,895

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 18/12

16:55-20:59

3 stops65h 04m

฿32,162

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 19/12

16:55-20:59

3 stops41h 04m

฿32,162

Flights are sorted by cheapest return flights first.

Deals found on 26/6

Sorted by cheapest first

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
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 to St. Louis

How long is the flight to St. Louis?

On average, a flight from Bangkok to St. Louis takes 26 hours 0 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

Plan your trip to St. Louis by taking into account the average rainfall totals 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

Plan your trip to St. Louis by taking into account the average temperature totals 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 (26 hours 0 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. Hampton Inn St. Louis-Airport is the closest property to Lambert-St Louis (0.0 km away from Lambert-St Louis).

See more FAQs

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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 to St. Louis?

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?

Cheapflights simply makes it quick and affordable to book flights to St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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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