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฿16,468+ 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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
11 Mar — 18 Mar1
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 9 February 2026.

Thu 23/417:30
BKK
-
STL
2 stops39h 35m
Multiple Airlines
Fri 1/508:25
STL
-
BKK
2 stops39h 45m
Multiple Airlines
Deal found 5/2฿35,864
Wed 26/800:30
BKK
-
STL
2 stops34h 38m
Japan Airlines
Mon 31/820:00
STL
-
BKK
2 stops55h 10m
Japan Airlines
Deal found 5/2฿37,911
Mon 9/311:20
BKK
-
STL
2 stops38h 31m
Multiple Airlines
Sat 14/314:47
STL
-
BKK
2 stops32h 23m
Multiple Airlines
Deal found 9/2฿38,068
Wed 25/313:20
BKK
-
STL
2 stops38h 00m
Multiple Airlines
Wed 1/415:50
STL
-
BKK
2 stops32h 20m
Multiple Airlines
Deal found 8/2฿38,414
Mon 23/312:45
BKK
-
STL
2 stops47h 13m
Cathay Pacific
Mon 30/308:00
STL
-
BKK
2 stops28h 10m
Cathay Pacific
Deal found 5/2฿39,328
Thu 27/809:35
BKK
-
STL
2 stops44h 18m
United Airlines
Mon 31/817:18
STL
-
BKK
3 stops28h 17m
United Airlines
Deal found 5/2฿44,775
Mon 23/316:55
BKK
-
STL
3 stops42h 39m
United Airlines
Mon 30/314:40
STL
-
BKK
3 stops30h 55m
United Airlines
Deal found 5/2฿45,121

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 9 February 2026.

Return from

฿35,864

One-way from

฿16,468

Popular in

December

Cheapest in

February

Average price

฿29,976
23/4-1/5
  • 23/4-1/5
  • 4 total stops
  • 79h 20m total
  • Bangkok to St. Louis
Search Deals
Philippine Airlines
  • Philippine Airlines
  • 9/3
  • 2 total stops
  • 50h 01m total
  • Bangkok to St. Louis
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (฿5,013 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿826 potential savings vs. average return price).
Search Deals
Average for return flights in February 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 9 February 2026.
Use the filters below to find and compare flights to St. Louis that are best for you.

Fly from

Bangkok

Route

Depart

Return

Price

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 23/4

17:30-21:05

2 stops39h 35m

Lambert-St Louis

Fri 1/5

08:25-12:10

2 stops39h 45m

฿35,864

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 9/3

11:20-13:51

2 stops38h 31m

Lambert-St Louis

Sat 14/3

14:47-11:10

2 stops32h 23m

฿38,068

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 25/3

13:20-15:20

2 stops38h 00m

Lambert-St Louis

Wed 1/4

15:50-12:10

2 stops32h 20m

฿38,414

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 23/3

12:45-23:58

2 stops47h 13m

Lambert-St Louis

Mon 30/3

08:00-00:10

2 stops28h 10m

฿39,328

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 23/3

16:55-23:34

3 stops42h 39m

Lambert-St Louis

Mon 30/3

14:40-09:35

3 stops30h 55m

฿45,121

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 23/4

15:45-08:35

3 stops28h 50m

Lambert-St Louis

Fri 1/5

08:46-09:35

3 stops36h 49m

฿45,594

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 9/3

16:55-16:23

3 stops35h 28m

Lambert-St Louis

Sat 14/3

14:50-11:25

3 stops32h 35m

฿51,261

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 9/3

23:50-13:51

2 stops50h 01m

฿16,468

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 9/3

01:10-10:37

3 stops45h 27m

฿16,499

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 11/3

13:20-13:51

2 stops36h 31m

฿16,499

Flights are sorted by cheapest return flights first.

Deals found on 9/2

Showing 1-10 of 14 results
1
2

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 28 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.

What are the most popular airlines that fly to St. Louis?

The most popular airline flying from Bangkok to St. Louis is Japan Airlines.

Japan Airlines
Japan Airlines
From ฿37,484

What are the cheapest airlines that fly to St. Louis?

The cheapest airline flying from Bangkok to St. Louis is Japan Airlines.

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).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated 9 February 2026.
Check out reviews from past customers who have flown Japan Airlines to the United States to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very Good
1,702 reviews
Check prices

Boarding

8.4

Comfort

8.2

Overall

8.3

Entertainment

7.8

Food

7.7

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

BKK - NRT

Everything was was a great experience, the staff was very friendly and always had a smile on the face.
Japan Airlines
8.3
Very Good
1,702 reviews
Japan Airlines
8.3
Very Good
1,702 reviews
Check prices

Boarding

8.4

Comfort

8.2

Overall

8.3

Entertainment

7.8

Food

7.7

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

BKK - NRT

Everything was was a great experience, the staff was very friendly and always had a smile on the face.

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.

  • What is the best airline to fly to St. Louis?

    Based on reviews from Cheapflights users, Japan Airlines is rated the highest out of the airlines that fly to St. Louis.

  • 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 (28 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. 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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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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