RM 5,237 Find Cheap Flights from St. Louis to Southeast Asia

This is the cheapest return 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 18/9. 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 Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Southeast Asia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Southeast Asia, as well as popular online travel agencies
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Cheap Flights from St. Louis to Southeast Asia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from St. Louis to Southeast Asia 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 return flight deals from St. Louis to Southeast Asia

Thu, 18 Sep - Tue, 30 Sep
United Airlines Logo
17:49 - 10:10STL-KUL
27h 21m2 stops
United Airlines Logo
14:15 - 21:37KUL-STL
44h 22m2 stops
RM 5,237United Airlines
Find Deal
Thu, 18 Sep - Tue, 30 Sep
United Airlines Logo
17:49 - 13:50STL-KUL
31h 01m2 stops
United Airlines Logo
07:15 - 22:00KUL-STL
27h 45m3 stops
RM 5,250United Airlines
Find Deal
Wed, 17 Sep - Sun, 21 Sep
United Airlines Logo
17:49 - 10:10STL-KUL
27h 21m2 stops
United Airlines Logo
14:15 - 18:58KUL-STL
41h 43m2 stops
RM 5,697United Airlines
Find Deal
Thu, 18 Sep - Mon, 29 Sep
Qatar Airways Logo
09:56 - 07:50STL-KUL
32h 54m2 stops
Qatar Airways Logo
02:55 - 21:53KUL-STL
31h 58m2 stops
RM 6,225Qatar Airways
Find Deal
Wed, 17 Sep - Sat, 20 Sep
Qatar Airways Logo
07:23 - 07:50STL-KUL
35h 27m2 stops
Qatar Airways Logo
02:55 - 20:25KUL-STL
30h 30m2 stops
RM 6,579Qatar Airways
Find Deal
Wed, 17 Sep - Sat, 20 Sep
Qatar Airways Logo
07:23 - 07:50STL-KUL
35h 27m2 stops
Qatar Airways Logo
02:55 - 20:25KUL-STL
30h 30m2 stops
RM 6,583Qatar Airways
Find Deal
Thu, 4 Dec - Tue, 30 Dec
EVA Air Logo
14:55 - 14:15STL-KUL
33h 20m2 stops
EVA Air Logo
15:25 - 15:14KUL-STL
37h 49m2 stops
RM 6,625EVA Air
Find Deal
Wed, 13 Aug - Sat, 16 Aug
 Logo
09:15 - 02:40STL-KUL
28h 25m3 stops
 Logo
16:15 - 13:32KUL-STL
34h 17m3 stops
RM 6,770
Find Deal
Wed, 13 Aug - Sat, 16 Aug
 Logo
06:45 - 12:05STL-KUL
40h 20m2 stops
 Logo
16:15 - 13:32KUL-STL
34h 17m3 stops
RM 7,209
Find Deal
Sat, 6 Sep - Thu, 11 Sep
American Airlines Logo
09:56 - 04:55STL-KUL
29h 59m2 stops
American Airlines Logo
22:50 - 20:32KUL-STL
34h 42m2 stops
RM 31,070American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for St. Louis to Southeast Asia flights

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

What is the cheapest month to fly from St. Louis to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Southeast Asia, 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 Southeast Asia is November, when tickets cost RM 5,293 (return) on average. On the other hand, the most expensive months are May and June, when the average cost of return tickets is RM 8,214 and RM 8,137 respectively.


Good to know

Low seasonAugust
Cheapest flightRM 5,237
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 9% lower on average.
Flight from St. Louis to Kuala Lumpur

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 from St. Louis to Southeast Asia is likely to change within 7 days, so travellers 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 return ticket. You could then fly from St. Louis to Southeast Asia 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 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 from St. Louis to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from St. Louis to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Southeast Asia. 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 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.
7.4
United AirlinesOverall score based on 8900 reviews
7.3Comfort
8.1Crew
6.6Food
7.7Boarding
7.1Entertainment
Airline reviews

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

2.0 MediocreV, Jul 2025MIA - EWR
Read more United Airlines reviews

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Everything you need to know for your flight to Southeast Asia

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