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Find cheap flights from St. Louis to Southeast Asia from $636

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 Southeast Asia departing on 9/8. 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
Wed 6/5
Wed 6/12

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Best Southeast Asia Flight Deals

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

Manila
Manila2 stops$1,741
Ho Chi Minh City
Ho Chi Minh City2 stops$1,171
Singapore
Singapore2 stops$1,315
Denpasar
Denpasar2 stops$1,345
Cebu City
Cebu City2 stops$1,368
Hanoi
Hanoi2 stops$1,418
Chiang Mai
Chiang Mai2 stops$1,435
Da Nang
Da Nang2 stops$1,505

Good to know

Low season

April

High season

May

Cheapest flight

$636
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from St. Louis to Bangkok

FAQs - booking Southeast Asia flights

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

    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 Southeast Asia.

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

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

    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 Southeast Asia 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 Southeast Asia?

    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 Southeast Asia 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 Southeast Asia

 
Need help choosing which airline to fly with from St. Louis to Southeast Asia? 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 1481 reviews
7.8Entertainment
7.9Food
8.7Crew
8.2Comfort
8.4Boarding
Airline reviews

At least it was not very cold inside the plane. I noticed there was now a bidet in the bathroom and that’s good! I didn’t like the window seat. Flight was smooth except for 1 turbulence. Plane was on time. Thanks. Food was not that great. Miso and green tea were good! As usual movies were old and there were no changes.

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

At least it was not very cold inside the plane. I noticed there was now a bidet in the bathroom and that’s good! I didn’t like the window seat. Flight was smooth except for 1 turbulence. Plane was on time. Thanks. Food was not that great. Miso and green tea were good! As usual movies were old and there were no changes.

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.

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.

The Experience was fantastic, it's a quick flight so no entertainment or food. Just a refreshment

First of all I had dozed off. And when I woke up, my food was on a tray without telling me the food was there or asking me if I wanted something to drink. They never came back to ask me if I wanted anything to drink and I tried to stop them several times. I personally have a problem swallowing food without something to drink with it. so therefore I could not eat., second thing for the entertainment. There was no place to plug the headset in because the tip had been broken off into the monitor to where you couldn’t even watch a movie or hear any music that was annoying .

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.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

The overall flight went well and the aircrew was pleasant.

Very comfortable Prem economy seats for a long haul flight. Had a problem with the tv that the crew fixed so was great!

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.

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

The coffee in Premium economy and economy is terrible. That's it. Everything else is great

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 was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Food was terrible Not many options Stewards dont care Delay

Book cheap flights from St. Louis to Southeast Asia

Recent round-trip flight deals

8/21Wed
2 stops
31h 21mSTL-SGN
10/22Tue
2 stops
33h 33mSGN-STL
$1,171
9/14Sat
2 stopsCathay Pacific
28h 20mSTL-BKK
10/15Tue
2 stopsCathay Pacific
27h 05mBKK-STL
$1,221
8/20Tue
2 stopsUnited Airlines
25h 00mSTL-SGN
9/20Fri
2 stopsUnited Airlines
33h 02mSGN-STL
$1,278
10/5Sat
2 stopsDelta
44h 00mSTL-SGN
11/20Wed
2 stopsDelta
43h 44mSGN-STL
$1,280
10/1Tue
3 stopsUnited Airlines
51h 10mSTL-SGN
11/21Thu
3 stopsUnited Airlines
54h 30mSGN-STL
$1,295
10/8Tue
2 stopsQatar Airways
43h 45mSTL-SIN
10/17Thu
2 stopsQatar Airways
34h 43mSIN-STL
$1,317
10/1Tue
2 stopsQatar Airways
35h 10mSTL-BKK
10/11Fri
2 stopsQatar Airways
33h 28mBKK-STL
$1,374
10/3Thu
2 stopsDelta
40h 25mSTL-HAN
10/7Mon
2 stopsDelta
21h 16mHAN-STL
$1,479
7/29Mon
2 stopsJapan Airlines
35h 11mSTL-SGN
8/19Mon
2 stopsJapan Airlines
35h 32mSGN-STL
$1,545
7/10Wed
2 stopsJapan Airlines
34h 46mSTL-SGN
8/9Fri
2 stopsJapan Airlines
28h 23mSGN-STL
$1,704

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Recent one-way flight deals

9/8Sun
2 stops
28h 29mSTL-BKK
$636
9/13Fri
2 stops
33h 09mSTL-BKK
$639
9/22Sun
2 stopsQatar Airways
34h 08mSTL-KUL
$676
9/23Mon
2 stopsQatar Airways
34h 08mSTL-KUL
$677
9/22Sun
2 stopsDelta
39h 45mSTL-KUL
$679
9/21Sat
2 stopsDelta
44h 59mSTL-KUL
$691
10/3Thu
3 stopsUnited Airlines
34h 20mSTL-BKK
$1,072
9/9Mon
3 stopsUnited Airlines
42h 35mSTL-BKK
$1,082
6/4Tue
2 stopsANA
29h 30mSTL-SGN
$1,166
6/3Mon
2 stopsANA
29h 30mSTL-SGN
$1,167

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Last minute flights from St. Louis to Southeast Asia

Last minute flight, train and bus deals

5/7Tue
multi-stopAmerican Airlines
35h 48mSTL-MNL
5/15Wed
multi-stopAmerican Airlines
28h 29mMNL-STL
$1,302
5/10Fri
multi-stopUnited Airlines
29h 15mSTL-SGN
5/12Sun
multi-stopUnited Airlines
51h 38mSGN-STL
$1,515
5/7Tue
multi-stop
33h 28mSTL-MNL
5/16Thu
multi-stop
25h 32mMNL-STL
$1,526
5/9Thu
multi-stopUnited Airlines
29h 36mSTL-BKK
5/24Fri
multi-stopUnited Airlines
42h 50mBKK-STL
$1,530
5/7Tue
multi-stop
28h 18mSTL-MNL
5/14Tue
multi-stop
40h 02mMNL-STL
$1,536
5/9Thu
multi-stopANA
43h 25mSTL-BKK
5/16Thu
multi-stopANA
30h 48mBKK-STL
$1,537
5/9Thu
multi-stop
29h 36mSTL-BKK
5/11Sat
multi-stop
31h 03mBKK-STL
$1,546
5/8Wed
multi-stopKorean Air
28h 59mSTL-MNL
6/3Mon
multi-stopKorean Air
35h 22mMNL-STL
$1,798
5/9Thu
multi-stopQatar Airways
28h 30mSTL-BKK
5/15Wed
multi-stopQatar Airways
33h 29mBKK-STL
$2,047
5/7Tue
multi-stopAmerican Airlines
36h 42mSTL-MNL
5/15Wed
multi-stopAmerican Airlines
27h 49mMNL-STL
$5,139

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St. Louis - Southeast Asia Flights

Departure:

St. Louis (STL)United States

Return flight deals:

Southeast Asia - St. Louis

Cabin classes:

$582
$231
$398
$57