$792 Find Cheap Flights from Thailand to St. Louis

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 6/29. 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

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

Wed, Jul 9 - Wed, Jul 16
Japan Airlines Logo
9:45 am - 11:30 pmBKK-STL
25h 45m2 stops
Japan Airlines Logo
7:03 am - 11:00 pmSTL-BKK
27h 57m2 stops
$975Japan Airlines
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Mon, Sep 1 - Sun, Sep 21
Japan Airlines Logo
10:05 pm - 11:09 pmBKK-STL
37h 04m2 stops
Japan Airlines Logo
9:56 am - 11:00 pmSTL-BKK
25h 04m2 stops
$992Japan Airlines
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Mon, Nov 10 - Mon, Dec 1
Air Canada Logo
8:35 am - 3:26 pmBKK-STL
43h 51m2 stops
Air Canada Logo
4:15 pm - 6:15 amSTL-BKK
49h 00m2 stops
$1,123Air Canada
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Mon, Nov 10 - Mon, Dec 1
Air Canada Logo
8:35 am - 3:26 pmBKK-STL
43h 51m2 stops
Air Canada Logo
4:15 pm - 6:15 amSTL-BKK
49h 00m2 stops
$1,125Air Canada
Find Deal
Sun, Nov 9 - Mon, Dec 1
EVA Air Logo
2:15 am - 3:05 pmBKK-STL
49h 50m2 stops
EVA Air Logo
7:00 am - 11:10 amSTL-BKK
39h 10m2 stops
$1,249EVA Air
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Sun, Nov 9 - Mon, Dec 1
EVA Air Logo
2:15 am - 3:05 pmBKK-STL
49h 50m2 stops
EVA Air Logo
7:00 am - 11:10 amSTL-BKK
39h 10m2 stops
$1,250EVA Air
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Fri, Sep 26 - Sat, Oct 25
 Logo
1:35 am - 4:45 pmBKK-STL
27h 10m2 stops
 Logo
3:57 pm - 11:10 amSTL-BKK
31h 13m2 stops
$1,278
Find Deal
Fri, Sep 26 - Sat, Oct 25
 Logo
1:35 am - 4:45 pmBKK-STL
27h 10m2 stops
 Logo
3:57 pm - 11:10 amSTL-BKK
31h 13m2 stops
$1,279
Find Deal
Sat, Sep 27 - Sat, Oct 25
United Airlines Logo
9:35 am - 12:28 pmBKK-STL
38h 53m2 stops
United Airlines Logo
5:28 pm - 10:50 amSTL-BKK
29h 22m3 stops
$1,396United Airlines
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Sat, Sep 27 - Sat, Oct 25
United Airlines Logo
9:35 am - 12:28 pmBKK-STL
38h 53m2 stops
United Airlines Logo
5:28 pm - 10:50 amSTL-BKK
29h 22m3 stops
$1,397United Airlines
Find Deal
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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 is the cheapest month to fly to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to St. Louis is June, where tickets cost $1,123 on average for return flights. On the other hand, the most expensive months are January and February, where the average cost of tickets from Thailand is $1,513 and $1,358 respectively. For one-way flights, the best month to travel is June with an average price of $1,123.


Good to know

Low seasonJanuary
High seasonAugust
Cheapest flight$792
Best time to beat the crowds but there is an average 18% increase in price.
Most popular time to fly with an average 5% increase in price.
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.

  • What is the cheapest day to fly to St. Louis?

    Based on KAYAK data, the cheapest day to fly to St. Louis is Friday where round-trip tickets can be as cheap as $312. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $574 on average.

  • 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.

  • What is the cheapest time of day to fly to St. Louis?

    The cheapest time of day to fly to St. Louis is generally in the morning, when round-trip flights cost $1,245 on average. The most expensive time of day to fly to St. Louis is generally at night, which is peak travel time and where the average cost of a ticket is $1,251.

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

    Each week there are around 1,609 direct flights from within Thailand to St. Louis. The most common day for departures is Friday, with 16% 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.

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 1489 reviews
7.7Food
8.4Boarding
8.2Comfort
7.8Entertainment
8.7Crew
Airline reviews

Extremely poor at handling baggage. I had oversized golf bag and JAL would not recheck in Boston. Had to haul by myself to Jet Blue. Both JAL and Jet Blue claimed I had overweight bag. Had to adjust baggage several times. Will avoid JAL in future and I always avoid Jet Blue when I can. QATAR always superior.

2.0 MediocreDaniel, Apr 2025BKK - NRT
Read more Japan Airlines reviews

Extremely poor at handling baggage. I had oversized golf bag and JAL would not recheck in Boston. Had to haul by myself to Jet Blue. Both JAL and Jet Blue claimed I had overweight bag. Had to adjust baggage several times. Will avoid JAL in future and I always avoid Jet Blue when I can. QATAR always superior.

Flight from New Delhi to Tokyo was mediocre. The seats were not of business class as we are used to. They were not wide enough. On the other hand the seats on the flight from Tokyo to San Francisco were excellent every thing were great except the food. Tokyo business lounge was excellent. The whole experience was great except the food on the plane. Will still fly JAL.

The entree wasn’t very good. The rice was soggy. The side dishes were all good though. The breakfast was also good. The crew were excellent, as usual.

The flight attendants were excellent as usual however the meal wasn’t the usual good quality. There is cooked rice was mushy.

This portion of the trip from HCMC to Dallas was operated by American Airline. Unfortunately they are 2 steps below JAL in overall quality. Regardless, AAStill got me where I needed to go on time.

Website from the 1990s, super frustrating customer support, inflight experience merely OK - more like United than e.g. Emirates

The seats are significantly more comfortable than US airlines and the staff are much friendlier. The food is also much better, as they are particularly accommodating to any dietary restrictions.

Could had been better if they include in their menu some western food.

They 7 seats in one row for Business class while most business class for other airlines are 4 seats in one row. the seat was narrow. the Toilet was so smell, dimming light, no water out of faucet. Terrible.

Difficult to access advanced check-in online. No way to understand why it wouldn’t work. Call center not answering. Email for answers took days to respond, Kind service at the airport and on the flight made up for disappointing service before flight.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

I liked that the flight was nonstop from ORD to CIU for $200 round trip.

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

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

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