฿21,270 - Cheap flights from Chiang Mai (CNX) to St. Louis (STL) (2025)

Popular airlines from Chiang Mai Intl. Airport (CNX) to Lambert-St. Louis International Airport (STL)

Nok Air
Nok Air
Thai AirAsia
Thai AirAsia
Thai Airways International
Thai Airways International
Thai AirAsia X
Thai AirAsia X
Hong Kong Airlines
Hong Kong Airlines
AirAsia
AirAsia
Scoot
Scoot

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Cheap Flights from Chiang Mai (CNX) to St. Louis (STL)

Prices were available within the past 7 days and start at ฿21,270 for one-way flights and ฿35,740 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All deals

One way

Return

Wed, 3 Sep - Wed, 17 Sep

CNX

Chiang Mai

STL

St. Louis

฿35,740

Return

found 2 days ago

Wed, 3 Sep - Wed, 17 Sep

CNX

Chiang Mai

STL

St. Louis

฿40,075

Return

found 2 days ago

Wed, 9 Jul - Wed, 16 Jul

CNX

Chiang Mai

STL

St. Louis

฿41,240

Return

found 2 days ago

Wed, 3 Sep - Wed, 17 Sep

CNX

Chiang Mai

STL

St. Louis

฿41,775

Return

found 2 days ago

Wed, 3 Sep - Wed, 17 Sep

CNX

Chiang Mai

STL

St. Louis

฿45,475

Return

found 2 days ago

Wed, 3 Sep - Wed, 17 Sep

CNX

Chiang Mai

STL

St. Louis

฿45,510

Return

found 2 days ago

Wed, 9 Jul - Wed, 16 Jul

CNX

Chiang Mai

STL

St. Louis

฿48,310

Return

found 2 days ago

Thu, 10 Jul - Mon, 14 Jul

CNX

Chiang Mai

STL

St. Louis

฿48,375

Return

found 2 days ago

Wed, 9 Jul - Wed, 16 Jul

CNX

Chiang Mai

STL

St. Louis

฿49,040

Return

found 2 days ago

Wed, 3 Sep - Wed, 17 Sep

CNX

Chiang Mai

STL

St. Louis

฿49,100

Return

found 2 days ago

Flight from Chiang Mai to St. Louis route information
Origin airport	Chiang Mai Intl.
Destination airport	Lambert-St. Louis Intl.
Return price	฿35,740
Distance	13467 km

Perfect flights from Chiang Mai to St. Louis

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Chiang Mai to St. Louis. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.

Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.

Our flexible Chiang Mai Intl. to Lambert-St. Louis Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿21,270 and roundtrip prices from ฿35,740. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.

But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Lambert-St. Louis Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in St. Louis.

Frequently asked questions

How much is a flight from CNX to Lambert Field?

Round-trip tickets from Chiang Mai Intl. Airport (CNX) to Lambert Field start from ฿35,740. This is based on fares quoted within the last 7 days on Expedia for flights departing within the next year --- make your booking ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.

Do I need to pay a cancellation fee if I cancel my flight from CNX to STL?

Most flights can be cancelled online, but each airline has its own terms and conditions. If you do have to cancel your flight, go to our Customer Service Portal and follow the instructions.

How do I find cheap flights from CNX to STL that have flexible change policies?

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for CNX to STL flights, you'll see a "no change fees" filter for you to select.

How far is the flight from Chiang Mai Airport to St. Louis Lambert International Airport?

The distance is around 13,600 kilometres. Earplugs? Check. Spare socks? Check. You'll need to pack all the travel comforts for this long-haul Chiang Mai to St. Louis flight.

Which airlines fly direct from Chiang Mai Intl. Airport (CNX) to Lambert-St. Louis Intl. Airport (STL)?

If you want to travel straight from CNX to St. Louis Lambert International Airport, you'll need to book a flight with at least one stop. Unfortunately, there are no airlines that fly directly between these airports.

Are CNX to St. Louis Lambert International Airport flight tickets cheaper when they're purchased at the last minute?

Last-minute planners can sometimes pick up a bargain, with some super cheap airfares from CNX to St. Louis Lambert International Airport surfacing a few weeks before the departure date. If you'd rather book ahead, Expedia compares and updates the best flight deals continually --- as early as 12 months in advance in some cases. It does depend on the carrier though, as not all airlines advertise prices that far in advance.