$590 Find Cheap Flights from Thailand to St. Louis - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 11/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Thailand to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Thailand to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Thailand to St. Louis

Sat, Oct 10 - Mon, Oct 19
Multiple Airlines Logo
11:00 am - 9:59 pm
BKK
-
STL
22h 59m
2 stops
Multiple Airlines Logo
7:10 pm - 11:30 am
STL
-
BKK
28h 20m
2 stops
$1,001Multiple Airlines
Wed, Oct 21 - Fri, Oct 23
Air Canada Logo
7:05 am - 6:41 pm
BKK
-
STL
47h 36m
2 stops
Air Canada Logo
8:00 am - 5:30 am
STL
-
BKK
33h 30m
2 stops
$1,103Air Canada
Wed, Oct 21 - Fri, Oct 23
Air Canada Logo
7:05 am - 6:41 pm
BKK
-
STL
47h 36m
2 stops
Air Canada Logo
8:00 am - 5:30 am
STL
-
BKK
33h 30m
2 stops
$1,105Air Canada
Wed, Oct 21 - Fri, Oct 23
Air Canada Logo
7:05 am - 6:41 pm
BKK
-
STL
47h 36m
2 stops
Air Canada Logo
8:00 am - 5:30 am
STL
-
BKK
33h 30m
2 stops
$1,106Air Canada
Wed, Oct 21 - Fri, Oct 23
Air Canada Logo
7:05 am - 6:41 pm
BKK
-
STL
47h 36m
2 stops
Air Canada Logo
8:00 am - 5:30 am
STL
-
BKK
33h 30m
2 stops
$1,109Air Canada
Sat, Oct 10 - Mon, Oct 19
Multiple Airlines Logo
11:00 am - 9:59 pm
BKK
-
STL
22h 59m
2 stops
Multiple Airlines Logo
7:10 pm - 11:30 am
STL
-
BKK
28h 20m
2 stops
$1,153Multiple Airlines
Sat, Oct 10 - Mon, Oct 19
Multiple Airlines Logo
5:30 pm - 12:15 pm
BKK
-
STL
30h 45m
3 stops
Multiple Airlines Logo
4:42 pm - 4:20 pm
STL
-
BKK
35h 38m
2 stops
$1,255Multiple Airlines
Wed, Dec 2 - Sat, Dec 5
Cathay Pacific Logo
12:20 pm - 11:57 pm
HKT
-
STL
48h 37m
2 stops
Cathay Pacific Logo
6:55 am - 11:20 am
STL
-
HKT
39h 25m
2 stops
$1,358Cathay Pacific
Wed, Oct 21 - Fri, Oct 23
United Airlines Logo
9:35 am - 2:17 pm
BKK
-
STL
64h 42m
2 stops
United Airlines Logo
5:36 pm - 11:30 am
STL
-
BKK
29h 54m
3 stops
$1,464United Airlines
Wed, Oct 21 - Fri, Oct 23
United Airlines Logo
9:35 am - 2:17 pm
BKK
-
STL
64h 42m
2 stops
United Airlines Logo
5:36 pm - 11:30 am
STL
-
BKK
29h 54m
3 stops
$1,468United Airlines
Booking Insights

KAYAK's insights & trends for flights to St. Louis

Get data-powered insights and trends for flights to St. Louis to help you find the cheapest flights, the best time to fly and much more.

What are the most popular airlines flying to St. Louis?

The most popular airline among KAYAK users flying to St. Louis is United Airlines, followed by Japan Airlines.

Good to know

Low season

February

Cheapest flight

$590
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Bangkok to St. Louis

FAQs - booking St. Louis flights

  • How far is Lambert-St Louis Airport from central St. Louis?

    The distance between Lambert-St Louis Airport and downtown St. Louis is 13 miles.

  • What is the name of St. Louis’s airport?

    All flights to St. Louis land at Lambert-St Louis Airport. The airport code is STL,and it can also be referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl.

  • How does KAYAK find such low prices on flights to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to St. Louis are there each week?

    Each week there are around 2,894 direct flights from within Thailand to St. Louis. The most common day for departures is Sunday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to St. Louis

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Louis flight deals.

Reviews of the top airlines flying from Thailand to St. Louis

 
See real verified KAYAK customer reviews for airlines flying to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Thailand to St. Louis. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.3
Japan AirlinesOverall score based on 1889 reviews
8.7Crew
8.4Boarding
7.7Food
7.8Entertainment
8.2Comfort
Airline reviews

Food we select all the airlines, but they said not selected, it’s bad experience.

8.0 ExcellentAnonymous, Jul 2026
NRT - SAN
Read more Japan Airlines reviews

Food we select all the airlines, but they said not selected, it’s bad experience.

My seat was so hard and uncomfortable. I took AA to Japan longer flight no tailbone pain. Coming back on JA shorter flight my tailbone was killing me no cushion on seat or just worn out.

Not very much of anything, it probably was once of my least favore business class flights I have experience in all the times that I flew Boz class

I always enjoy flying with Japanese Airlines. The whole experience is always a pleasure. This flight was no exception. Thank you Kayak for making it so easy to decide.

Very smooth onboarding and offboarding. Food provided was cold and not the best.

Great. Better than average US carriers on overseas flights. Still room for improvement to rise up the average Asian and Middle East airlines.

Terrible experience. Staff would not even refill my tea once. While they refilled a fellow Japanese persons wine 7 times. They also lost my luggage. Horrible. Go elsewhere

main courses of the primary meal were not good- the beef dish was really not good-

Service and the plane itself were terrific, but the extensive delays both before we left and after were a real pain.

It was good and there is nothing to complain about .

Flight staff and all was fine. Food always sucks on planes so nothing new.

Flight was delayed “due to earlier delays of that plane”, so we were nearly three hours late.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airport terminal was outdated, flight was on a small jet with no wifi

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

Short flight - no food understandable. Flight was delayed for over an hour. Overall, it was good.

We boarded and buckled and then deplaned due to no pilot. Had to wait over 3 hours for a new pilot. Not weather related, just poor management.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Shrewsbury
Glencoe

Everything you need to know for your flight to St. Louis

Information on the airport you'll fly into in St. Louis