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฿19,272+ 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 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Flights to St. Louis in 2025

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 12 December 2025.

Sat 20/1219:15BKK - STL
2 stops34h 31mMultiple Airlines
Sat 27/1218:44STL - BKK
2 stops32h 56mMultiple Airlines
Deal found 11/12฿50,746
Thu 18/1202:00BKK - STL
2 stops36h 25mQatar Airways
Sat 27/1205:22STL - BKK
2 stops41h 23mQatar Airways
Deal found 10/12฿56,166
Fri 19/1207:55BKK - STL
2 stops28h 03mCathay Pacific
Sat 27/1218:44STL - BKK
2 stops34h 31mCathay Pacific
Deal found 11/12฿58,068
Fri 19/1216:55BKK - STL
3 stops42h 27mUnited Airlines
Sat 27/1206:00STL - BKK
3 stops40h 25mUnited Airlines
Deal found 10/12฿69,542
Sat 20/1216:55BKK - STL
3 stops33h 25mUnited Airlines
Sat 27/1206:00STL - BKK
3 stops40h 25mUnited Airlines
Deal found 10/12฿75,089

Find flight deals to St. Louis

Find the latest flights to St. Louis in 2025, 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 12 December 2025.

Return from

฿40,857

One-way from

฿19,272

Popular in

January

Cheapest in

June

Average price

฿40,128
Japan Airlines
  • Japan Airlines
  • 17/2-19/2
  • 4 total stops
  • 85h 54m total
  • Bangkok to St. Louis
Search Deals
25/1
  • 25/1
  • 2 total stops
  • 39h 59m total
  • Bangkok to St. Louis
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (฿84 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿774 potential savings vs. average return price).
Search Deals
Average for return flights in December 2025
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 12 December 2025.
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

Tue 17/2

09:55-13:54

2 stops40h 59m

Lambert-St Louis

Thu 19/2

06:30-16:25

2 stops44h 55m

฿40,857

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 17/2

16:55-09:23

3 stops29h 28m

Lambert-St Louis

Thu 19/2

08:41-11:25

3 stops37h 44m

฿45,485

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 25/1

10:55-13:54

2 stops39h 59m

฿19,272

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 17/1

14:05-13:54

2 stops36h 49m

฿19,430

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 17/1

19:15-22:59

2 stops40h 44m

฿22,092

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 25/1

16:55-20:58

3 stops41h 03m

฿29,922

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 17/1

16:55-16:55

3 stops37h 00m

฿32,140

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 1/1

02:25-23:59

2 stops34h 34m

฿46,974

Flights are sorted by cheapest return flights first.

Deals found on 11/12

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 27 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 ฿37,733

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 12 December 2025.
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
1,653 reviews
Check prices

Crew

8.7

Food

7.7

Comfort

8.2

Overall

8.3

Boarding

8.4

Entertainment

7.8

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
1,653 reviews
Japan Airlines
8.3
Very Good
1,653 reviews
Check prices

Crew

8.7

Food

7.7

Comfort

8.2

Overall

8.3

Boarding

8.4

Entertainment

7.8

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 (27 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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