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Find cheap flights from St. Louis to Thailand from $639

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 7/11. 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
Tue 7/2
Tue 7/9

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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$1,693

Good to know

Low season

August

High season

November

Cheapest flight

$639
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

  • On average*, there is no price difference when choosing to fly in the morning or the evening on this flight route.
*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 10410 reviews
8.2Boarding
8.6Crew
7.4Food
8.0Entertainment
7.9Comfort
Airline reviews

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

10.0 ExcellentBarb, Jun 2024MSP - JFK
Read more about Delta reviews

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

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Half the bathrooms assigned to economy were out of action

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.

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.

I’m very disappointed, to fly into an airplane for 10 straight hours, and not having a TV even though when I put the ticket I was told that I will have entertainment for the TV. Very disappointed.

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.

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.

Missed connection from Philadelphia to London because flight from DC was seriously delayed. Was re-routed the next day (had to pay for hotel) to Zurich and was given a main cabin middle seat while I had paid for premium. Great job AA!!!

My husband and I pre-ordered our food, but they did not have my husband’s order, and my cheese plate was very average. I asked for a blanket and was told they don’t carry blankets on domestic routs. The flight was on time and smooth!

28 hour delay at Fort Worth/Dallas airport, part due to weather which was unavoidable, but various other reasons - no pilot, no fa, mechanical problem, plane too small, too big, crew out of flying time, seat configuration problems.... endless and hourly updates with a different excuse. Finally told us about 3.00 am, that the flight was delayed to hours later.

Experience was bad. 3.5 hour delay for a 2.5 hour trip. There was no r Transparency about the reason for the delay and it was done 30 mins at a time.

Original flight delayed several times and finally canceled at 2:30 in the morning. Staff at the gate was not very helpful in resolving problems or communicating why there were delays. I spent 34 hours at the airport before I could leave, they couldn't book me on another early flight even after canceling my original flight. Next flight available after my original flight was canceled was 22 hours later. I will never fly American Airlines again.

very very tight seats unfriendly crew who do not seem to care about the comfort of their passengers and do not know how to smile poor ground staff support at LHR and PHX

Book cheap flights from St. Louis to Thailand

Recent round-trip flight deals

9/10Tue
2 stopsAmerican Airlines
34h 20mSTL-BKK
9/26Thu
2 stopsAmerican Airlines
26h 43mBKK-STL
$1,156
10/29Tue
2 stopsUnited Airlines
29h 05mSTL-BKK
11/11Mon
2 stopsUnited Airlines
22h 16mBKK-STL
$1,158
9/10Tue
2 stopsJapan Airlines
34h 20mSTL-BKK
9/25Wed
2 stopsJapan Airlines
34h 35mBKK-STL
$1,161
10/16Wed
2 stopsJapan Airlines
34h 20mSTL-BKK
10/20Sun
2 stopsJapan Airlines
27h 53mBKK-STL
$1,203
11/8Fri
2 stopsDelta
29h 20mSTL-BKK
11/17Sun
2 stopsDelta
29h 41mBKK-STL
$1,340
10/15Tue
2 stopsQatar Airways
28h 49mSTL-BKK
10/21Mon
2 stopsQatar Airways
27h 58mBKK-STL
$1,361
10/16Wed
2 stopsQatar Airways
28h 49mSTL-BKK
10/19Sat
2 stopsQatar Airways
42h 38mBKK-STL
$1,368
11/8Fri
2 stopsDelta
27h 10mSTL-BKK
11/16Sat
2 stopsDelta
29h 59mBKK-STL
$1,380
7/3Wed
2 stopsFinnair
47h 17mSTL-BKK
7/8Mon
2 stopsFinnair
47h 25mBKK-STL
$1,582
6/18Tue
2 stopsFinnair
34h 25mSTL-BKK
6/29Sat
2 stopsFinnair
47h 28mBKK-STL
$1,802

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Recent one-way flight deals

7/11Thu
2 stopsAmerican Airlines
32h 03mSTL-BKK
$639
11/3Sun
2 stopsUnited Airlines
42h 11mSTL-BKK
$653
7/11Thu
3 stops
58h 41mSTL-BKK
$695
8/15Thu
3 stops
50h 01mSTL-HKT
$822
8/15Thu
2 stops
38h 46mSTL-HKT
$844
10/2Wed
3 stops
28h 55mSTL-BKK
$1,234
11/1Fri
3 stops
56h 00mSTL-BKK
$2,932
11/1Fri
2 stopsJapan Airlines
33h 41mSTL-BKK
$3,335
10/2Wed
1 stop
33h 05mSTL-BKK
$6,793
11/1Fri
1 stop
25h 40mSTL-BKK
$15,360

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Last minute flights from St. Louis to Thailand

Last minute flight, train and bus deals

6/4Tue
multi-stop
32h 50mSTL-BKK
6/6Thu
multi-stop
35h 31mBKK-STL
$1,837
6/4Tue
multi-stop
30h 55mSTL-BKK
6/6Thu
multi-stop
35h 31mBKK-STL
$1,845
6/4Tue
multi-stop
34h 27mSTL-BKK
6/6Thu
multi-stop
28h 39mBKK-STL
$2,136
6/5Wed
multi-stopQatar Airways
35h 03mSTL-BKK
6/7Fri
multi-stopQatar Airways
48h 02mBKK-STL
$2,176
6/5Wed
multi-stopQatar Airways
27h 14mSTL-BKK
6/7Fri
multi-stopQatar Airways
38h 02mBKK-STL
$2,198
6/5Wed
multi-stop
30h 27mSTL-BKK
6/7Fri
multi-stop
35h 56mBKK-STL
$2,485
6/5Wed
multi-stop
30h 27mSTL-BKK
6/7Fri
multi-stop
35h 40mBKK-STL
$2,812
6/5Wed
multi-stop
28h 10mSTL-BKK
6/6Thu
multi-stop
33h 59mBKK-STL
$3,272
6/5Wed
multi-stop
29h 30mSTL-BKK
6/7Fri
multi-stop
24h 26mBKK-STL
$3,461
6/5Wed
multi-stopKorean Air
27h 45mSTL-BKK
6/6Thu
multi-stopKorean Air
26h 22mBKK-STL
$9,902

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St. Louis - Thailand Flights

Departure:

St. Louis (STL)United States

Return flight deals:

Thailand - St. Louis

Cabin classes: