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Find cheap flights from St. Louis to Thailand from $582

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 Thailand departing on 9/5. 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
Sat 7/6
Sat 7/13

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Best Thailand Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Phuket City
Phuket City2 stops$1,534
Chiang Mai
Chiang Mai2 stops$2,518

Good to know

Low season

August

High season

November

Cheapest flight

$582
Best time to beat the crowds but there is an average 18% increase in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from St. Louis to Bangkok

FAQs - booking Thailand flights

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

    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 Thailand.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Thailand 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 Thailand?

    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 Thailand with an airline and back to St. Louis with another airline.

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

    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 Thailand 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 tips for finding cheap flights to Thailand

  • Morning departure is around 9% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from St. Louis to Thailand

Need help choosing which airline to fly with from St. Louis to Thailand? 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.
8.0
DeltaOverall score based on 10368 reviews
8.2Boarding
8.6Crew
8.0Entertainment
7.9Comfort
7.4Food
Airline reviews

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

4.0 OkayDavwinder Singh, Jun 2024SEA - ATL
Read more about Delta reviews

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Great, the flight attendants were very friendly and the food was also good.

The overall flight went well and the aircrew was pleasant.

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.

My seat was sold off to someone else. Had to wait 9 hours to catch the next filght. Definitely will never use Cathay Pacific again. Bad, very bad airline. will comment on google reviews too.

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

Not great. Flight attendants were aloof, food was mediocre, seats that I paid $150 were given to someone else without any concession. I will probably never use kayak again. Terrible experience from start to finish.

All good- I love BA and the professionalism of the crew and pilots.

Great flight- smooth, nice crew, nice clean aircraft, departed a little late but arrived 10 early.

It was listed on my ticket as Finnair but there was no indication that the flight was Finnair. In fact the number was even different. There were no employees there until exactly 2 hours before so we had to wait in line at Iberia and hope

Sorting on line would have been appreciated Onward information on flights missed No ability to get seating arranged before we got to gate Very unfriendly at gate

The flight was Finnair but there was no indications anywhere that the checkin was for Finnair also. There was no one to ask. I think at a minimum they should list the code shares so people don’t stand in the wrong line for an hour.

I booked the flight with Finnair, which made the arrangements for downloading a boarding pass unnecessarily complicated. I wouldn't do that again. Instead I'd book direct with AA.

Flight ok, but me and other two passengers didn’t have connection with the entertainment in our seats. So, no movies, no games, no music… for 9 hours. The crew just told us that there’s nothing they can do but I noticed during the flight that there were empty seats, so they could have offered to us to change seats. Customer service could be better.

Had a nice flight to London on BA will fly with them again in the future

Finnair cancelled my flight 12 hours prior to leaving for Helsinki. They stated there were mechanical problems. I had to scurry around to find a new flight that would meet my needs for arrival in Helsinki. Luckily I was able to find alternate transportation through Lufthansa/United.

Staff was very friendly. There is no on board entertainment, but it’s such a short flight that it doesn’t matter. We also got a meal which was nice and unexpected due to the length of the flight.

Flight was fine overall. What you would expect from economy seats. I did appreciate the amenities (eyemask, earplugs, small toothbrush and toothpaste, thin socks).

Besides the flight cancellation, everything else was prefect. Kudos to Malaysian Airlines.

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.

This flight was canceled and delayed several times without explanation. The plane was freezing cold and no wifi for messaging. Getting off the plane was terribly unorganized and felt like it took forever….

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Terrible. I didn’t fly and I had an important meeting the next day.

Missed this flight due to the first AA flight delay

Equipment swap led to 2+ hour delay on international flight. And to top it off, boarding took forever.

Wretched scheduling - they got themselves into a critical crew situation and didn’t try to address it until 15 minutes before they had to cancel my flight

They cancelled two flight and got us onto another airline, which was also delayed.

Nothing, terrible travel experience due to weather and maintenance delays and was left stranded in Austin.

Book cheap flights from St. Louis to Thailand

Recent round-trip flight deals

9/5Thu
2 stopsDelta
27h 39mSTL-BKK
9/19Thu
2 stopsDelta
25h 49mBKK-STL
$1,150
9/9Mon
2 stopsAmerican Airlines
33h 50mSTL-BKK
10/3Thu
2 stopsAmerican Airlines
25h 15mBKK-STL
$1,154
9/9Mon
2 stopsJapan Airlines
33h 40mSTL-BKK
10/2Wed
2 stopsJapan Airlines
34h 35mBKK-STL
$1,157
9/10Tue
2 stopsJapan Airlines
43h 55mSTL-BKK
9/25Wed
2 stopsJapan Airlines
34h 35mBKK-STL
$1,161
9/10Tue
2 stopsQatar Airways
35h 10mSTL-BKK
10/8Tue
2 stopsQatar Airways
33h 28mBKK-STL
$1,301
9/9Mon
2 stopsQatar Airways
35h 10mSTL-BKK
9/19Thu
2 stopsQatar Airways
42h 30mBKK-STL
$1,371
7/3Wed
2 stopsFinnair
47h 17mSTL-BKK
7/8Mon
2 stopsFinnair
47h 25mBKK-STL
$1,632
7/13Sat
2 stopsFinnair
47h 16mSTL-BKK
7/21Sun
2 stopsFinnair
47h 25mBKK-STL
$1,691
11/2Sat
2 stopsCathay Pacific
34h 17mSTL-HKT
11/9Sat
2 stopsCathay Pacific
47h 40mHKT-STL
$1,812
9/10Tue
3 stopsCathay Pacific
44h 53mSTL-HKT
9/18Wed
2 stopsCathay Pacific
37h 18mHKT-STL
$2,369

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Recent one-way flight deals

9/5Thu
3 stops
40h 52mSTL-BKK
$582
9/8Sun
2 stopsDelta
40h 29mSTL-BKK
$636
9/5Thu
2 stopsDelta
29h 29mSTL-BKK
$637
7/31Wed
2 stopsAmerican Airlines
32h 03mSTL-BKK
$639
8/1Thu
2 stopsAmerican Airlines
28h 00mSTL-BKK
$641
7/29Mon
2 stopsJapan Airlines
34h 11mSTL-BKK
$643
7/30Tue
2 stopsJapan Airlines
28h 00mSTL-BKK
$648
8/4Sun
2 stopsDelta
29h 29mSTL-BKK
$677
9/6Fri
3 stopsUnited Airlines
47h 15mSTL-BKK
$697
9/8Sun
3 stopsUnited Airlines
47h 15mSTL-BKK
$795

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Last minute flights from St. Louis to Thailand

Last minute flight, train and bus deals

6/9Sun
multi-stopANA
34h 05mSTL-BKK
6/11Tue
multi-stopANA
30h 50mBKK-STL
$2,140
6/9Sun
multi-stop
31h 00mSTL-BKK
6/11Tue
multi-stop
25h 00mBKK-STL
$2,326
6/9Sun
multi-stop
26h 00mSTL-BKK
6/10Mon
multi-stop
28h 47mBKK-STL
$2,774
6/9Sun
multi-stop
34h 25mSTL-BKK
6/11Tue
multi-stop
25h 45mBKK-STL
$4,160
6/9Sun
multi-stop
27h 00mSTL-BKK
6/11Tue
multi-stop
25h 45mBKK-STL
$6,314

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St. Louis - Thailand Flights

Departure:

St. Louis (STL)United States

Return flight deals:

Thailand - St. Louis

Cabin classes: