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STL - BKK

Find cheap flights from St. Louis to Bangkok from $712

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Bangkok departing on 4/27. 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
0 bags
Fri 5/24
Fri 5/31

Search hundreds of travel sites at once for deals on flights to Bangkok

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Bangkok.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Bangkok.
In the last 7 days travelers have searched 44,632,927 times on KAYAK, and here is why:

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Cheap flight deals from St. Louis to Bangkok (STL-BKK)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Bangkok 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 and deals for you by selecting your travel dates.
Choose your dates
12:03 pm - 11:50 pmSTL-BKK
23h 47m2 stops
9:35 pm - 8:20 pmBKK-STL
34h 45m3 stops
$1,625
Find Deal
Sat, Apr 27 - Mon, Apr 29
7:20 pm - 1:10 pmSTL-BKK
29h 50m2 stops
8:00 pm - 9:10 amBKK-STL
49h 10m2 stops
$1,637Qatar Airways
Find Deal
Tue, May 21 - Tue, May 28
5:22 am - 5:25 amSTL-BKK
36h 03m2 stops
7:15 am - 10:24 pmBKK-STL
51h 09m2 stops
$1,650
Find Deal
Tue, Jul 16 - Wed, Aug 14
3:05 pm - 9:30 amSTL-BKK
30h 25m2 stops
12:05 pm - 5:20 pmBKK-STL
41h 15m2 stops
$1,854KLM
Find Deal
Thu, May 16 - Tue, Jul 16
5:53 pm - 9:30 amSTL-BKK
27h 37m2 stops
12:05 pm - 4:20 pmBKK-STL
40h 15m2 stops
$2,054KLM
Find Deal
Fri, Jun 28 - Tue, Jul 9
3:10 pm - 8:00 amSTL-BKK
28h 50m2 stops
3:30 am - 10:14 pmBKK-STL
30h 44m2 stops
$2,188Emirates
Find Deal
Mon, Jul 8 - Fri, Jul 12
7:32 pm - 8:00 amSTL-BKK
48h 28m2 stops
2:50 am - 10:14 pmBKK-STL
31h 24m2 stops
$2,594Emirates
Find Deal
Wed, Jul 3 - Sun, Jul 7
6:08 am - 4:35 amSTL-BKK
58h 27m3 stops
9:35 am - 4:28 pmBKK-STL
42h 53m3 stops
$2,667United Airlines
Find Deal
Tue, Jul 16 - Wed, Aug 14
6:08 am - 4:35 amSTL-BKK
58h 27m3 stops
9:35 am - 4:28 pmBKK-STL
42h 53m2 stops
$2,838United Airlines
Find Deal
Fri, Jun 28 - Tue, Jul 9
7:59 am - 5:50 amSTL-BKK
33h 51m2 stops
8:05 am - 10:54 pmBKK-STL
26h 49m3 stops
$7,723American Airlines
Find Deal
Sun, Apr 28 - Sun, May 5

Flights from St. Louis to Bangkok - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from St. Louis to Bangkok?

The average price of all flights from St. Louis to Bangkok Suvarnabhumi Airport clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from St. Louis to Bangkok, look for departures on Mondays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Bangkok, Thursday is the cheapest day to fly and Friday is the most expensive.

What is the cheapest month to fly from St. Louis to Bangkok Suvarnabhumi Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Bangkok Suvarnabhumi Airport, 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 from St. Louis to Bangkok Suvarnabhumi Airport is January, where tickets cost $1,349 on average. On the other hand, the most expensive months are December and June, where the average cost of tickets is $1,997 and $1,976 respectively.

How far in advance should I book a flight from St. Louis to Bangkok Suvarnabhumi Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Bangkok Suvarnabhumi Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Bangkok Suvarnabhumi Airport, you should book around 3 days before departure. For the absolute cheapest price, our data suggests you should book 88 days before departure.

Good to know

Low season

August

High season

January

Cheapest flight

$712
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from St. Louis to Bangkok

When to book flights from St. Louis to Bangkok

Are your dates flexible? Find out the best times to travel from St. Louis to Bangkok based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking St. Louis to Bangkok flights

  • What is the cheapest flight from St. Louis to Bangkok Suvarnabhumi Airport?

    In the last 3 days, the lowest price for a flight from St. Louis to Bangkok Suvarnabhumi Airport was $712 for a one-way ticket and $1,625 for a round-trip.

  • Do I need a passport to fly between St. Louis and Bangkok?

    A passport is required to fly from St. Louis to Bangkok.

  • Which airports will I be using when flying from St. Louis to Bangkok?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Bangkok, also known as Bangkok Suvarnabhumi.

  • Which aircraft models fly most regularly from St. Louis to Bangkok?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Bangkok?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between St. Louis and Bangkok, with oneworld being the most commonly used for this route.

  • What is the most popular layover when flying to Bangkok from St. Louis?

    Doha is the most popular layover city among KAYAK users traveling from St. Louis to Bangkok.

  • Which is the best airline for flights from St. Louis to Bangkok, Qatar Airways or Finnair?

    The two airlines most popular with KAYAK users for flights from St. Louis to Bangkok are Qatar Airways and Finnair. With an average price for the route of $1,380 and an overall rating of 7.7, Qatar Airways is the most popular choice. Finnair is also a great choice for the route, with an average price of $1,589 and an overall rating of 7.7.

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

    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 from St. Louis to Bangkok.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bangkok from 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 from St. Louis to Bangkok?

    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 Bangkok with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and BKK can sometimes prove cheaper using this method.

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

    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 Bangkok from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from St. Louis to Bangkok

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Bangkok. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Bangkok? 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 1487 reviews
8.4boarding
7.8entertainment
8.2comfort
8.7crew
7.9food
Airline reviews

Food as always. PA was not clear, especially the English ones. Very limited Hollywood movies. Unlike the first flight I had, this plane has less leg room and less room for my under seat baggage.

8.0 ExcellentAnonymous, Apr 2024NRT - BKK
Read more about Japan Airlines reviews

Food as always. PA was not clear, especially the English ones. Very limited Hollywood movies. Unlike the first flight I had, this plane has less leg room and less room for my under seat baggage.

I like the braised beef., miso soup,, and green tea. Very little choices of hollywood movies. The PA announcement in English was not very clear and very soft. I could hardly hear.

Please change menu every now & then bc I fly twice within the year and serving the food the same

More updated movies & Chinese movies. The food sometimes overcooked. Prefer to have more neat snacks in between than just choose from the menu. Please change the menu every now and then. This is my second time flying within one year and the menu didn’t change at all!

Food is lagging. Very poor choice. Like vending machine fast food.

Please change the menu more often. The beef is not tender, more choice in ice cream flavor. Dessert is not good too.

Again I paid for an upgrade on my credit card didn’t get it need a refund. . American I not good at gettin in contact for refunds.

I didn’t like the check in process I had to check in at the counter took too much time . Didn’t give the upgrade my seat .

l enjoyed the variety of good and drink choices. The flight attendants were very quick and efficient to our needs.

Truly impressive service in the air. After the main meal, they have a delicious a la carte menu that you can order anytime until 1.5 hrs prior to landing. Flight crew were so pleasant and very efficient. Wish I could fly JAL more often!

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive. I also upgraded to comfort + , I didn’t feel it was worth it. There was no benefit

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive.

They did a fine job. Can't wait to use Delta in the future.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

Seat back monitors and outlets were dead and not working.

Everything was great except for the seat. The backrest would not stay in the upright position.

I usually have a positive experience with Delta. Complimentary upgrades are always nice!

Flight delayed about 2 hrs so it made it a VERY late night

The crew, food, and entertainment were all good. But my screen had some sort of bug where if I turned it off, it would turn back on after 2-5 minutes. At full brightness. It made it very hard to get any shut-eye on the overnight flight. Also, the older Boeing plane, while nicely cared for (and no doors fell off 😅👏) doesn't have the nice air quality of newer planes. So I felt a bit greasy by the time we landed in Sweden.

Cathay Pacific seems to be an airline in trouble and on its way out. Lots of broken or poorly functioning things like entertainment screens, seats, and enough well trained staff to handle a full flight. Sad...

The flight crew was exceptionally good. Personal needs were well met. The food choices were very nice.

Excellent. Planes are a little older and could get some refurbishment, but besides that everything was excellent.

Crew experience was more transnational, seats were so close together (LtoR and FtoB) that it was difficult to enjoy much of anything. When the person in front leaned back, there is no space for me. Sadly it was a flight to be endured not experienced.

While I was in great pain, the seat was sufficiently comfortable to allow me to rest and not be in so much pain.

we were upgraded which was a blessing and tender mercy for us. I fell the day before and was in extreme pain from knee to shoulder. Sitting in a more comfortable seat during the flight was an unexpected blessing and experience.

Seats were very comfortable. Crew were excellent. Food very good.

Flight crew was especially thoughtful and attentive, made sure our seats were comfortable so we could rest on the long flight

One of the worst flight in business class by qatar airways and I’m no stranger with qatar airways businesses class, I travelled with the extensively in the past 12 years

Everything went smooth. All flights were on time No changing gates, . No changing flights . It was like a completely different airlines tha n the last time I used Cathay Pacific . The last flight, 2 months ago, I had before this one was from Philippines also . I got changed in Manila and was told it only added 2 hours onto my flight . My 20 hour return trip ended up being 30 hours return with a 10.0 hour layover in New York with no seats anywhere . Everyone was sleeping or sitting on the floor . Unlike the hotel I was given in Manila to wait for this flight home . I never thought I would use Cathay Pacific again . But I did and this time you were great! I should have complained about the flight and layover from Hell a couple months ago. Consider that I am complaining about that august/23 flight now . Thank you got the great flying experience on my way home from philippines .

Operated by American Airlines. Very chaotic and the crew was bit rough responding any enquiries. Restricted leg space.. Qatar would have been better

Qatar airways from Doha to guangzhau was excellent big bird Boeing 777 more room and smoothly flight, I Love it

It was good no problems made it on time for the next flight overseas!

The made us waiting and held our passports and boarding pass making us miss our flights

Not impressed. Only allowed one carry on on such a long flight.

The flight was good but my neighbor had the vent open full power for the whole flight and because the air was blowing from the side instead of from the top and I got very cold and ended up with a sore throat.

Bad experience with the delay n long wait time for connecting flight after missing the connection flight from Doha.

Wore experience due to delay and took me 3 days to reach my destination.

All over with Qatar airlines my experience was really bad due to delays and then putting me on different airlines and after 8 hours of wait I had to listen to their is no plane to fly for another 24 hours. Wore experience ever.

Excellent will be flying again in May with Qatar. to Botswana.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

It was spectacular. I had basic Economy and was given so much space and their seats lean back so far. Staff was superb, food was superb, everything was superb, Finnair is Fantastic.

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

The flight was great but board was a nightmare. The gate was changed 4 times during the layover period

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Cold air blew constantly on my legs almost making me numb.

Ac was broken so we deplaned, waited 2 hours, taxiing for takeoff they said the plane would not fly so we went back to the gate and got a new plane which took another hour. In all a 4 hour delay for an 80 min flight.

Book cheap flights from St. Louis to Bangkok

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Bangkok found on KAYAK in the last 72 hours.
4/27Sat
2 stops
28h 54mSTL-BKK
$712
4/27Sat
3 stops
49h 55mSTL-BKK
$775
6/4Tue
2 stopsFinnair
34h 25mSTL-BKK
$1,077
6/4Tue
3 stops
32h 15mSTL-BKK
$1,173

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Last minute flights from St. Louis to Bangkok

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Bangkok that are departing in the next 10 days.
4/27Sat
multi-stop
23h 47mSTL-BKK
4/29Mon
multi-stop
34h 45mBKK-STL
$1,625
4/28Sun
multi-stopQatar Airways
35h 06mSTL-BKK
5/5Sun
multi-stopQatar Airways
60h 05mBKK-STL
$1,712
4/27Sat
multi-stop
27h 46mSTL-BKK
4/29Mon
multi-stop
34h 45mBKK-STL
$1,717
4/27Sat
multi-stopQatar Airways
37h 32mSTL-BKK
4/29Mon
multi-stopQatar Airways
44h 42mBKK-STL
$2,149
4/28Sun
multi-stop
28h 10mSTL-BKK
5/4Sat
multi-stop
33h 59mBKK-STL
$2,179
4/27Sat
multi-stop
28h 10mSTL-BKK
4/28Sun
multi-stop
33h 59mBKK-STL
$2,681
4/28Sun
multi-stop
33h 05mSTL-BKK
5/5Sun
multi-stop
46h 13mBKK-STL
$3,669
4/28Sun
multi-stop
33h 05mSTL-BKK
5/4Sat
multi-stop
30h 57mBKK-STL
$3,880
4/28Sun
multi-stopAmerican Airlines
33h 51mSTL-BKK
5/5Sun
multi-stopAmerican Airlines
26h 49mBKK-STL
$7,723
4/28Sun
multi-stop
49h 11mSTL-BKK
5/4Sat
multi-stop
49h 21mBKK-STL
$8,308

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St. Louis - Bangkok Flights

Departure:

St. Louis (STL)United States

Destination:

Bangkok (BKK)Thailand

Return flight deals:

Bangkok - St. Louis

Cabin classes: