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฿17,183+ Cheap flights to St. Louis

— STL
19 Sep — 26 Sep1
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

Mon 5/1007:05 -
2 stops47h 36m
Tue 13/1008:55 -
2 stops56h 10m
Deal found 18/8฿35,553
Thu 5/1123:55 -
2 stops52h 31m
Fri 27/1116:05 -
2 stops49h 25m
Deal found 18/8฿37,895
Mon 5/1016:45 -
3 stops31h 55m
Tue 13/1016:42 -
2 stops29h 43m
Deal found 18/8฿48,086
Mon 5/1009:35 -
3 stops39h 05m
Tue 13/1016:39 -
3 stops28h 56m
Deal found 18/8฿48,746
Thu 5/1109:10 -
2 stops23h 13m
Fri 27/1113:40 -
3 stops32h 50m
Deal found 18/8฿49,108

Find flight deals to St. Louis

Return from

฿35,553

One-way from

฿17,183

Popular in

July

Cheapest in

February
แอร์แคนาดา
  • แอร์แคนาดา
  • 5/10-13/10
  • 4 total stops
  • 103h 46m total
  • Bangkok to St. Louis
Search Deals
5/10
  • 5/10
  • 3 total stops
  • 54h 07m total
  • Bangkok to St. Louis
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (฿11,483 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿1,821 potential savings vs. average return price).
Search Deals

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 5/10

07:05-18:41

2 stops47h 36m

Lambert-St Louis

Tue 13/10

08:55-05:05

2 stops56h 10m

฿35,553

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Wed 10/2

08:25-10:41

2 stops39h 16m

Lambert-St Louis

Sun 14/2

19:04-06:30

2 stops46h 26m

฿36,741

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Mon 5/10

16:45-12:40

3 stops31h 55m

Lambert-St Louis

Tue 13/10

16:42-10:25

2 stops29h 43m

฿48,086
Fastest return journey

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Wed 10/2

09:10-21:13

2 stops25h 03m

Lambert-St Louis

Sun 14/2

13:08-11:30

3 stops33h 22m

฿48,746

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Thu 5/11

09:10-23:24

2 stops27h 14m

Lambert-St Louis

Fri 27/11

13:40-11:30

3 stops32h 50m

฿49,174
Cheapest one-way

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Sun 4/10

03:00-23:59

2 stops32h 59m

฿20,283

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Tue 20/10

03:00-23:59

2 stops32h 59m

฿20,283

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Mon 5/10

03:00-23:59

2 stops32h 59m

฿20,613

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Fri 9/10

03:00-23:59

2 stops32h 59m

฿21,075

BangkokSt. Louis

BKK Bangkok Suvarnabhumi - STL Lambert-St Louis

BKKSTL

Bangkok Suvarnabhumi

Sun 4/10

09:55-23:59

2 stops50h 04m

฿21,536

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 13 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 29 hours 4 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 (29 hours 4 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

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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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