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฿19,239+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
14 May — 21 May1
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 14 April 2026.

Tue 20/1021:40
BKK
-
STL
2 stops37h 25m
Japan Airlines
Sat 24/1008:30
STL
-
BKK
2 stops27h 05m
Japan Airlines
Deal found 13/4฿39,669
Tue 5/502:30
BKK
-
STL
2 stops33h 29m
Qatar Airways
Wed 16/918:51
STL
-
BKK
2 stops30h 34m
Qatar Airways
Deal found 12/4฿40,376
Sun 3/502:30
BKK
-
STL
2 stops33h 29m
Qatar Airways
Thu 17/906:00
STL
-
BKK
2 stops42h 55m
Qatar Airways
Deal found 12/4฿40,634
Thu 7/519:00
BKK
-
STL
2 stops39h 59m
Qatar Airways
Thu 17/906:00
STL
-
BKK
2 stops37h 15m
Qatar Airways
Deal found 12/4฿41,213
Sun 3/519:00
BKK
-
STL
2 stops40h 59m
Qatar Airways
Thu 17/906:00
STL
-
BKK
2 stops36h 20m
Qatar Airways
Deal found 12/4฿41,406
Sun 3/502:30
BKK
-
STL
2 stops33h 29m
Qatar Airways
Tue 15/910:14
STL
-
BKK
2 stops32h 06m
Qatar Airways
Deal found 12/4฿41,567
Thu 7/519:00
BKK
-
STL
2 stops39h 59m
Qatar Airways
Fri 18/906:00
STL
-
BKK
2 stops42h 55m
Qatar Airways
Deal found 12/4฿42,017
Thu 7/519:00
BKK
-
STL
2 stops39h 59m
Qatar Airways
Tue 15/912:43
STL
-
BKK
2 stops29h 37m
Qatar Airways
Deal found 12/4฿42,178
Sun 3/519:45
BKK
-
STL
2 stops40h 14m
Qatar Airways
Fri 18/906:00
STL
-
BKK
2 stops36h 20m
Qatar Airways
Deal found 12/4฿42,210
Sun 3/519:00
BKK
-
STL
2 stops40h 59m
Qatar Airways
Mon 14/917:11
STL
-
BKK
2 stops31h 44m
Qatar Airways
Deal found 12/4฿42,371
Sun 3/501:00
BKK
-
STL
2 stops34h 59m
Qatar Airways
Sun 13/918:51
STL
-
BKK
2 stops30h 04m
Qatar Airways
Deal found 12/4฿42,918
Thu 7/519:00
BKK
-
STL
2 stops39h 59m
Qatar Airways
Sat 19/918:51
STL
-
BKK
2 stops30h 04m
Qatar Airways
Deal found 12/4฿43,497

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 14 April 2026.

Return from

฿40,376

One-way from

฿19,239

Popular in

March

Cheapest in

February

Average price

฿38,543
Qatar Airways
  • Qatar Airways
  • 5/5-16/9
  • 4 total stops
  • 64h 03m total
  • Bangkok to St. Louis
Search Deals
5/5
  • 5/5
  • 2 total stops
  • 33h 29m total
  • Bangkok to St. Louis
Search Deals
Highest demand for flights based on searches. 3% potential increase in price.
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿1,464 potential savings vs. average return price).
Search Deals
Average for return flights in April 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 14 April 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

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 8/5

02:30-23:59

2 stops33h 29m

Lambert-St Louis

Wed 16/9

10:14-12:55

2 stops38h 41m

฿42,371

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 8/5

19:00-23:59

2 stops40h 59m

Lambert-St Louis

Tue 15/9

12:43-06:20

2 stops29h 37m

฿42,371

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 3/5

19:45-23:59

2 stops40h 14m

Lambert-St Louis

Sun 13/9

18:51-12:55

2 stops30h 04m

฿43,690

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 26/5

09:40-23:56

2 stops26h 16m

Lambert-St Louis

Mon 8/6

08:36-23:00

2 stops26h 24m

฿45,492

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 7/5

15:45-20:43

3 stops40h 58m

Lambert-St Louis

Sun 13/9

05:00-04:35

2 stops35h 35m

฿46,264

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 6/5

15:45-08:39

3 stops28h 54m

Lambert-St Louis

Wed 16/9

05:10-23:55

2 stops30h 45m

฿52,152

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 3/5

07:00-05:47

2 stops34h 47m

Lambert-St Louis

Wed 16/9

17:32-09:35

3 stops28h 03m

฿55,530

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 26/5

15:45-08:41

3 stops28h 56m

Lambert-St Louis

Mon 8/6

11:25-09:35

3 stops34h 10m

฿72,195
Fastest return journey

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 26/5

23:45-13:25

1 stop25h 40m

Lambert-St Louis

Mon 8/6

15:30-06:25

1 stop26h 55m

฿403,861
Cheapest one-way

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 25/5

01:20-08:55

3 stops43h 35m

฿19,497

Flights are sorted by cheapest return flights first.

Deals found on 12/4

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 33 hours 19 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 ฿38,300

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 14 April 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
1,779 reviews
Check prices

Overall

8.3

Crew

8.7

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Reviews

1 / 20
8.0
Excellent

Evan,Feb 2026

NRT - ORD

They didn't get my order for vegetarian meals, and the non-veggie options were mediocre. But the crew was very nice an tried to help as well as they could.
Japan Airlines
8.3
Very Good
1,779 reviews
Japan Airlines
8.3
Very Good
1,779 reviews
Check prices

Overall

8.3

Crew

8.7

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Reviews

1 / 20
8.0
Excellent

Evan,Feb 2026

NRT - ORD

They didn't get my order for vegetarian meals, and the non-veggie options were mediocre. But the crew was very nice an tried to help as well as they could.

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 (33 hours 19 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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Why should you use Cheapflights to find cheap flight tickets to St. Louis?

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

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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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