฿21,525 Cheap Flights from Chiang Mai (CNX) to St. Louis (STL)

View ฿21,525 flight on Mon, 21 Sept 2026Opens in a new window

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

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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 ฿21,525 for one-way flights and ฿41,210 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

EVA Airways
Sat, 23 Jan - Sat, 13 Feb
CNX
Chiang Mai
STL
St. Louis
฿41,210 Return, found 2 days ago
฿41,210
Return
found 2 days ago
Select EVA Airways flight, departing Sat, 23 Jan from Chiang Mai to St. Louis, returning Sat, 13 Feb, priced at ฿41,210 found 2 days ago
China Airlines
Sat, 23 Jan - Sat, 13 Feb
CNX
Chiang Mai
STL
St. Louis
฿51,285 Return, found 2 days ago
฿51,285
Return
found 2 days ago
Select China Airlines flight, departing Sat, 23 Jan from Chiang Mai to St. Louis, returning Sat, 13 Feb, priced at ฿51,285 found 2 days ago
EVA Airways
Thu, 7 May - Wed, 13 May
CNX
Chiang Mai
STL
St. Louis
฿58,070 Return, found 1 day ago
฿58,070
Return
found 1 day ago
Select EVA Airways flight, departing Thu, 7 May from Chiang Mai to St. Louis, returning Wed, 13 May, priced at ฿58,070 found 1 day ago
EVA Airways
Thu, 30 Jul - Wed, 26 Aug
CNX
Chiang Mai
STL
St. Louis
฿58,485 Return, found 4 days ago
฿58,485
Return
found 4 days ago
Select EVA Airways flight, departing Thu, 30 Jul from Chiang Mai to St. Louis, returning Wed, 26 Aug, priced at ฿58,485 found 4 days ago
EVA Airways
Thu, 30 Jul - Wed, 26 Aug
CNX
Chiang Mai
STL
St. Louis
฿58,770 Return, found 4 days ago
฿58,770
Return
found 4 days ago
Select EVA Airways flight, departing Thu, 30 Jul from Chiang Mai to St. Louis, returning Wed, 26 Aug, priced at ฿58,770 found 4 days ago
Delta
Sat, 23 Jan - Sat, 13 Feb
CNX
Chiang Mai
STL
St. Louis
฿59,230 Return, found 2 days ago
฿59,230
Return
found 2 days ago
Select Delta flight, departing Sat, 23 Jan from Chiang Mai to St. Louis, returning Sat, 13 Feb, priced at ฿59,230 found 2 days ago
EVA Airways
Thu, 7 May - Wed, 13 May
CNX
Chiang Mai
STL
St. Louis
฿59,300 Return, found 1 day ago
฿59,300
Return
found 1 day ago
Select EVA Airways flight, departing Thu, 7 May from Chiang Mai to St. Louis, returning Wed, 13 May, priced at ฿59,300 found 1 day ago
Delta
Sat, 23 Jan - Sat, 13 Feb
CNX
Chiang Mai
STL
St. Louis
฿59,320 Return, found 2 days ago
฿59,320
Return
found 2 days ago
Select Delta flight, departing Sat, 23 Jan from Chiang Mai to St. Louis, returning Sat, 13 Feb, priced at ฿59,320 found 2 days ago
Korean Air
Sat, 23 Jan - Sat, 13 Feb
CNX
Chiang Mai
STL
St. Louis
฿59,410 Return, found 2 days ago
฿59,410
Return
found 2 days ago
Select Korean Air flight, departing Sat, 23 Jan from Chiang Mai to St. Louis, returning Sat, 13 Feb, priced at ฿59,410 found 2 days ago
Delta
Sat, 23 Jan - Sat, 13 Feb
CNX
Chiang Mai
STL
St. Louis
฿59,480 Return, found 2 days ago
฿59,480
Return
found 2 days ago
Select Delta flight, departing Sat, 23 Jan from Chiang Mai to St. Louis, returning Sat, 13 Feb, priced at ฿59,480 found 2 days ago

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from ฿58,070
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city centre20 min
Flights from ฿58,070

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 ฿41,210. 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.

Travel information

Origin airport
Chiang Mai Intl.
Destination airport
Lambert-St. Louis Intl.
Return price
฿41,210
Distance
13467 km
*Available to Expedia members.