Find flights
Airlines
Travel Guide

฿19,565+ 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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
24 May — 31 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 24 April 2026.

Mon 5/1012:25
BKK
-
STL
2 stops47h 34m
EVA Air
Thu 22/1015:24
STL
-
BKK
2 stops31h 31m
EVA Air
Deal found 21/4฿37,057
Mon 5/1013:20
BKK
-
STL
2 stops37h 06m
Multiple Airlines
Thu 22/1007:00
STL
-
BKK
2 stops38h 45m
Multiple Airlines
Deal found 22/4฿37,576
Tue 23/609:40
BKK
-
STL
2 stops26h 16m
Japan Airlines
Tue 7/708:36
STL
-
BKK
2 stops26h 24m
Japan Airlines
Deal found 19/4฿40,329
Thu 25/607:55
BKK
-
STL
2 stops25h 42m
American Airlines
Tue 14/706:36
STL
-
BKK
2 stops44h 34m
American Airlines
Deal found 19/4฿40,782
Thu 29/1009:55
BKK
-
STL
2 stops49h 10m
Japan Airlines
Mon 2/1106:00
STL
-
BKK
2 stops34h 05m
Japan Airlines
Deal found 23/4฿40,847
Wed 24/621:40
BKK
-
STL
2 stops38h 16m
Japan Airlines
Tue 7/708:36
STL
-
BKK
2 stops26h 24m
Japan Airlines
Deal found 19/4฿40,912
Wed 24/607:05
BKK
-
STL
2 stops49h 20m
แอร์แคนาดา
Wed 15/716:48
STL
-
BKK
2 stops24h 17m
แอร์แคนาดา
Deal found 19/4฿41,787
Wed 24/607:05
BKK
-
STL
2 stops28h 52m
แอร์แคนาดา
Tue 14/716:48
STL
-
BKK
2 stops48h 17m
แอร์แคนาดา
Deal found 19/4฿41,851
Tue 23/621:35
BKK
-
STL
2 stops50h 46m
แอร์แคนาดา
Wed 8/713:38
STL
-
BKK
2 stops27h 27m
แอร์แคนาดา
Deal found 19/4฿42,240
Fri 26/607:05
BKK
-
STL
2 stops41h 16m
แอร์แคนาดา
Wed 8/713:38
STL
-
BKK
2 stops27h 27m
แอร์แคนาดา
Deal found 19/4฿42,467

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 24 April 2026.

Return from

฿37,057

One-way from

฿19,565

Popular in

March

Cheapest in

February

Average price

฿38,806
EVA Air
  • EVA Air
  • 5/10-22/10
  • 4 total stops
  • 79h 05m total
  • Bangkok to St. Louis
Search Deals
13/5
  • 13/5
  • 3 total stops
  • 39h 03m 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 (฿1,473 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 24 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

Mon 5/10

10:50-14:20

3 stops39h 30m

Lambert-St Louis

Thu 22/10

15:24-12:10

2 stops32h 46m

฿39,973
Fastest return journey

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 20/10

09:40-23:05

2 stops25h 25m

Lambert-St Louis

Sat 24/10

08:30-23:35

2 stops27h 05m

฿42,888

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 5/6

07:05-20:25

2 stops25h 20m

Lambert-St Louis

Fri 12/6

14:15-05:05

2 stops50h 50m

฿44,119

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 23/6

20:00-19:36

2 stops35h 36m

Lambert-St Louis

Tue 14/7

09:39-06:20

2 stops32h 41m

฿46,678

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 7/6

15:45-08:41

3 stops28h 56m

Lambert-St Louis

Thu 23/7

09:06-09:35

3 stops36h 29m

฿47,876

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 20/10

09:35-12:20

2 stops38h 45m

Lambert-St Louis

Sat 24/10

17:18-11:25

3 stops30h 07m

฿47,909
Cheapest one-way

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 13/10

23:40-14:26

2 stops50h 46m

฿20,796

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 8/10

13:20-23:59

2 stops46h 39m

฿21,768

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 20/8

11:45-19:36

3 stops43h 51m

฿22,740

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 21/5

17:30-00:30

2 stops43h 00m

฿24,100

Flights are sorted by cheapest return flights first.

Deals found on 20/4

Showing 1-10 of 15 resultsSorted by cheapest first
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 37 hours 6 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 ฿38,562

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 24 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
1,787 reviews
Check prices

Comfort

8.2

Crew

8.7

Boarding

8.4

Overall

8.3

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
1,787 reviews
Japan Airlines
8.3
Very Good
1,787 reviews
Check prices

Comfort

8.2

Crew

8.7

Boarding

8.4

Overall

8.3

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, Phuket City offers the quickest one-way flight (28 hours 32 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to St. Louis by cabin class

Find flights to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class flights to St. Louis
Business Class flights to St. Louis
Prem Economy Class flights to St. Louis
Economy Class flights to St. Louis

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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.