Cheap Flights from St. Louis (STL) to Khon Kaen (KKC)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Khon Kaen (KKC)

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Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Khon Kaen Airport (KKC) cost?
Grab a cheap one-way flight or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to Khon Kaen Airport (KKC) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Khon Kaen Airport (KKC)?
Planning your trip for is a good way to save, as it's the cheapest month for flights between STL and KKC. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Khon Kaen Airport (KKC)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll take you from STL to KKC. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Khon Kaen Airport (KKC)?
You'll need to hop on a flight with a layover when traveling from Lambert-St. Louis Intl. Airport (STL) to Khon Kaen Airport (KKC). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from STL to KKC?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary based on a number of factors, including 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 Khon Kaen Airport (KKC)?
Book a flight from Lambert-St. Louis Intl. Airport (STL) to Khon Kaen Airport (KKC) that leaves before 3 PM to reduce the risk of cancellations. Departures after this hour are on average 22% more likely to be canceled.**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 Khon Kaen Airport (KKC) last-minute?
Waiting until just before your trip to book your flight from STL to KKC generally means paying more. While it's possible to find some last-minute offers, they aren't always guaranteed. Be flexible with your travel plans for the best chance of getting a bargain.
Is it cheaper to book a STL to KKC flight and hotel package?
Compared with arranging hotels and flights separately, booking a STL to KKC flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one convenient place will take the hassle out of travel planning. Just secure your flights and choose from our extensive range of stays, then tailor your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Khon Kaen Airport (KKC)?
If you booked your STL to KKC flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Khon Kaen
Distance
8528 mi

Book with confidence

Book with confidence

St. Louis to Khon Kaen Flights

The cheapest times to fly from St. Louis to Khon Kaen

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Khon Kaen are during the month of . You can find some of the cheapest flights from St. Louis to Khon Kaen with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Khon Kaen

Sunday is one of the best days to book for cheap flights from St. Louis to Khon Kaen: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Khon Kaen

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Khon Kaen in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Khon Kaen flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Khon Kaen airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Khon Kaen Flights

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*Available to One Key members.