$584 Cheap Flights from St. Louis (STL) to Kuala Lumpur (KUL)

View $584 flight on Wed, Nov 19, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Kuala Lumpur International Airport (KUL)

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Find available prices by choosing your travel dates.

Cheap Flights from St. Louis to Kuala Lumpur (STL-KUL)

Prices were available within the past 7 days and start at $584 for one-way flights and $1,124 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Nov 18 - Tue, Dec 9
STL
St. Louis
KUL
Kuala Lumpur
$1,124 Roundtrip, found 16 hours ago
$1,124
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Tue, Nov 18 from St. Louis to Kuala Lumpur, returning Tue, Dec 9, priced at $1,124 found 16 hours ago
Delta
Wed, Nov 19 - Wed, Dec 3
STL
St. Louis
KUL
Kuala Lumpur
$1,132 Roundtrip, found 16 hours ago
$1,132
Roundtrip
found 16 hours ago
Select Delta flight, departing Wed, Nov 19 from St. Louis to Kuala Lumpur, returning Wed, Dec 3, priced at $1,132 found 16 hours ago
Delta
Sun, May 4 - Mon, May 12
STL
St. Louis
KUL
Kuala Lumpur
$1,139 Roundtrip, found 5 days ago
$1,139
Roundtrip
found 5 days ago
Select Delta flight, departing Sun, May 4 from St. Louis to Kuala Lumpur, returning Mon, May 12, priced at $1,139 found 5 days ago
Cathay Pacific
Mon, May 5 - Tue, May 13
STL
St. Louis
KUL
Kuala Lumpur
$1,157 Roundtrip, found 2 hours ago
$1,157
Roundtrip
found 2 hours ago
Select Cathay Pacific flight, departing Mon, May 5 from St. Louis to Kuala Lumpur, returning Tue, May 13, priced at $1,157 found 2 hours ago
Delta
Wed, May 7 - Fri, May 16
STL
St. Louis
KUL
Kuala Lumpur
$1,182 Roundtrip, found 1 day ago
$1,182
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, May 7 from St. Louis to Kuala Lumpur, returning Fri, May 16, priced at $1,182 found 1 day ago
Delta
Mon, Jan 12 - Wed, Jan 28
STL
St. Louis
KUL
Kuala Lumpur
$1,185 Roundtrip, found 1 day ago
$1,185
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Jan 12 from St. Louis to Kuala Lumpur, returning Wed, Jan 28, priced at $1,185 found 1 day ago
Delta
Sun, May 4 - Thu, May 15
STL
St. Louis
KUL
Kuala Lumpur
$1,189 Roundtrip, found 5 days ago
$1,189
Roundtrip
found 5 days ago
Select Delta flight, departing Sun, May 4 from St. Louis to Kuala Lumpur, returning Thu, May 15, priced at $1,189 found 5 days ago
American Airlines
Mon, Jan 12 - Wed, Jan 28
STL
St. Louis
KUL
Kuala Lumpur
$1,205 Roundtrip, found 1 day ago
$1,205
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Jan 12 from St. Louis to Kuala Lumpur, returning Wed, Jan 28, priced at $1,205 found 1 day ago
United
Tue, Nov 18 - Tue, Dec 9
STL
St. Louis
KUL
Kuala Lumpur
$1,244 Roundtrip, found 16 hours ago
$1,244
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Nov 18 from St. Louis to Kuala Lumpur, returning Tue, Dec 9, priced at $1,244 found 16 hours ago
Cathay Pacific
Sat, Aug 16 - Sun, Aug 24
STL
St. Louis
KUL
Kuala Lumpur
$1,274 Roundtrip, found 1 day ago
$1,274
Roundtrip
found 1 day ago
Select Cathay Pacific flight, departing Sat, Aug 16 from St. Louis to Kuala Lumpur, returning Sun, Aug 24, priced at $1,274 found 1 day ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Kuala Lumpur Intl. Airport (KUL) cost?
Discover the latest flight deals from STL to KUL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from STL to KUL?
The cheapest flights from STL to KUL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from STL to KUL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from STL to KUL. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Kuala Lumpur Intl. Airport (KUL)?
There are no daily nonstop flights available from Lambert-St. Louis Intl. Airport (STL) to Kuala Lumpur Intl. Airport (KUL). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you’ll be soaring above the clouds before you know it.
What day of the week has the most flights from STL to KUL?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending on a range of factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Kuala Lumpur Intl. Airport (KUL)?
Choose a flight from Lambert-St. Louis Intl. Airport (STL) to Kuala Lumpur Intl. Airport (KUL) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Kuala Lumpur Intl. Airport (KUL) last-minute?
Waiting until just before your trip to book a flight from STL to KUL generally means paying more. While you might find some last-minute offers, they aren’t always guaranteed. Allow some flexibility in your schedule for a better chance of landing a bargain.
Is it cheaper to book a STL to KUL flight and hotel package?
Booking a STL to KUL flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our wide range of accommodations and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Kuala Lumpur Intl. Airport (KUL)?
Usually, it’s possible to cancel or reschedule your STL to KUL flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline’s policies in your itinerary to see what changes are allowed and if any costs are involved. You’ll also find more details on our Customer Service portal.
*Available to One Key members.