$607 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 11/24. 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

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
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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

Mon, Jul 6 - Mon, Jul 13
Air Canada Logo
9:35 pm - 2:02 pm
BKK
-
STL
52h 27m
2 stops
Air Canada Logo
2:40 pm - 11:35 pm
STL
-
BKK
44h 55m
2 stops
$1,092Air Canada
Tue, Oct 27 - Mon, Nov 9
Multiple Airlines Logo
5:50 pm - 3:44 pm
BKK
-
STL
33h 54m
2 stops
Multiple Airlines Logo
7:00 am - 9:50 am
STL
-
BKK
37h 50m
2 stops
$1,121Multiple Airlines
Mon, Oct 26 - Fri, Nov 6
Multiple Airlines Logo
1:30 pm - 3:44 pm
BKK
-
STL
38h 14m
2 stops
Multiple Airlines Logo
3:11 pm - 12:05 pm
STL
-
BKK
31h 54m
2 stops
$1,153Multiple Airlines
Mon, Oct 26 - Fri, Nov 6
Multiple Airlines Logo
1:30 pm - 3:44 pm
BKK
-
STL
38h 14m
2 stops
Multiple Airlines Logo
3:11 pm - 12:05 pm
STL
-
BKK
31h 54m
2 stops
$1,154Multiple Airlines
Tue, Oct 27 - Mon, Nov 9
Multiple Airlines Logo
10:55 am - 2:20 pm
BKK
-
STL
39h 25m
3 stops
Multiple Airlines Logo
7:00 am - 9:50 am
STL
-
BKK
37h 50m
2 stops
$1,161Multiple Airlines
Mon, Oct 26 - Fri, Nov 6
Multiple Airlines Logo
10:55 am - 2:20 pm
BKK
-
STL
39h 25m
3 stops
Multiple Airlines Logo
7:20 pm - 1:05 pm
STL
-
BKK
28h 45m
2 stops
$1,293Multiple Airlines
Fri, Oct 23 - Tue, Oct 27
Qatar Airways Logo
9:20 am - 11:05 pm
HKT
-
STL
49h 45m
2 stops
Qatar Airways Logo
6:30 am - 12:55 pm
STL
-
HKT
42h 25m
2 stops
$1,402Qatar Airways
Fri, Oct 23 - Tue, Oct 27
Qatar Airways Logo
9:20 am - 11:05 pm
HKT
-
STL
49h 45m
2 stops
Qatar Airways Logo
6:30 am - 12:55 pm
STL
-
HKT
42h 25m
2 stops
$1,409Qatar Airways
Mon, Jul 6 - Mon, Jul 13
United Airlines Logo
7:00 am - 11:44 pm
BKK
-
STL
28h 44m
2 stops
United Airlines Logo
1:13 pm - 9:35 am
STL
-
BKK
32h 22m
3 stops
$1,472United Airlines
Tue, Oct 27 - Mon, Nov 9
United Airlines Logo
4:55 pm - 8:37 am
BKK
-
STL
27h 42m
3 stops
United Airlines Logo
9:13 am - 11:25 am
STL
-
BKK
37h 12m
3 stops
$1,543United 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 seasonFebruary
Cheapest flight$607
Best time to beat the crowds with an average 36% 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 3,057 direct flights from within Thailand to St. Louis. The most common day for departures is Monday, 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 1839 reviews
7.7Food
8.2Comfort
8.7Crew
7.8Entertainment
8.4Boarding
Airline reviews

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

8.0 ExcellentKim, Jun 2026
HND - JFK
Read more Japan Airlines reviews

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 .

The seats were narrower compare to other airlines traveling to Asia, which makes them uncomfortable after 6 hours The plane was worn, my tray table wasn’t level, You had to pay for WiFi and no Bluetooth option to use your own headphones. The crew was excellent in servicing the food and drinks. However I felt they needed some extra hands to serve the two sections of economy at the same time. They run out of one of the food option as they got to the rear section of the plane. Having travel on other Asian airlines during this trip; American Airlines can learn a bit from them, but I wonder if their service is geared towards a clientele that has become accustomed to not expect to much from an airline.

It was just a short flight. The crew was nice. No major issue.

Overall, it was ok. The attendants are nice. It was a short flight, and I did not use the restrooms. What I was frustrated was the check-in. I was to fly from ATL to Chicago (American) then change to Japan Airline to go to Japan. I checked in, but I only got a boarding pass for the flight from Atlanta to Chicago. It said I would need to check in for a flight to Japan on Japan Airline site. When I tried to check in on JAL website, it said I need to check in American... It was very confusing.

The crew was great, food was good. My concern is about the plane itself. It wasn't super clean, and during the landing process (after attendants had to take their seats) the air conditioning vent above my daughter's head started leaking a lot of water. It leaked for about 30 minutes, until we landed. I let the attendant know about the leak as we were getting off the plane, and she was very kind about saying she'd look into it. Given concerns about hygiene on planes, plus the fact that my daughter had to hold the blanket over her for 30 minutes to avoid getting soaked, that was not a great situation.

Absolutely WORST experience I’ve ever hard NEVER buy your airline ticket through a third party website, especially this one. Basically stole $1300 from me and has the WORST policy taking a WEEK to change a name on the reservation? A complete joke of a company.

There was a problem with the maintenance so missed the flight from las vegas to L.A and then L.A to Narita with japan airlines. They took care of the problem by rebooked with cathay pacific airways.

I paid for premium and it’s wasn’t what I was told I would be getting. Food wasn’t good. Should be able to pick and not be served items you dislike. Very little leg room.

I am trying to select a seat during booking but it respond that set assigment will be given during check in, and the seat assignment they give is in the middle seat and 2 row from the rest rooms, i am the person who pee a lot in this case I disturb so much the person beside me ,this trip is from Haneda to Texas, the trip from Texas to Cvg is a much better because its a smaller plane few passenger

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Service was professional and quick. Premium economy seat was comfortable given the class

I'm a United 1K member and have ben for 10 years. The gate agent had no control over the boarding process and had us passengers queued for hours as delays were announced. On the plane, the overhead air nozzle was broken so col over was powering through on me and the passenger next to me. Not a great experience for a million miler on United. Feel free to contact me. Josh Smigel - DM426089

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

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