Which airports can I use when flying from St. Louis to Chiang Mai?

Flights from St. Louis to Chiang Mai usually depart from Lambert-St Louis (STL) and arrive at Chiang Mai (CNX).

What cabin classes can I book on flights from St. Louis to Chiang Mai?

Two cabin classes are available on flights from St. Louis to Chiang Mai: • Economy Class • Premium Economy Class

Can I save money by using flexible dates for flights from St. Louis to Chiang Mai?

Yes. Flexible dates can save you up to 50% on flights from St. Louis to Chiang Mai. Thursday is the cheapest departure day at $1,273 round-trip on average, while Saturday is the most expensive at $2,497, a difference of $1,224. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Chiang Mai?

Some of the most popular sights in Chiang Mai are Chiang Mai Night Bazaar, Tha Phae Gate and Chiang Mai International Exhibition and Convention Centre. These are among the most viewed places in Chiang Mai on KAYAK.

Do I need a passport to fly from St. Louis to Chiang Mai?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

How are flight prices from St. Louis to Chiang Mai looking right now?

One-way fares from St. Louis to Chiang Mai are currently higher than usual. Average one-way flight prices are about $1,019, which is 41% above the typical average for this route.

What is the time difference between St. Louis and Chiang Mai?

Chiang Mai is 13 hours ahead of St. Louis (Indochina Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Chiang Mai Airport (CNX)?

Chiang Mai Airport (CNX) hosts 5 major car rental companies, with daily rates averaging $31 for economy cars. Top options include: • Drive Car Rental • Alamo • Yesaway • ASAP Car Rentals • Sixt

How much should I expect to pay for a St. Louis to Chiang Mai flight?

Round-trip flights from St. Louis to Chiang Mai range from $1,394 to $1,964, with an average of $1,900 over the past 12 months. Anything below $1,394 counts as a good deal.

How much is a round-trip flight from St. Louis to Chiang Mai?

Round-trip flights from St. Louis to Chiang Mai typically range from $1,394 to $1,964. The lowest price found in the past 5 days was $1,201, on Korean Air.

Which airline is the cheapest to fly from St. Louis to Chiang Mai?

Korean Air ($1,201) and Etihad Airways ($1,566) are the cheapest airlines to fly round-trip from St. Louis to Chiang Mai according to KAYAK data over the last 5 days.

$675 CHEAP FLIGHTS from St. Louis to Chiang Mai (STL - CNX)

Save 26% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$1,201

Typical prices: $1,394-$1,964

Korean Air

Sun 3/4Wed 3/7

STL - CNX • 2 stops

Cheapest one-way

$675

Typical prices: $682-$957

Multiple Airlines

Wed 4/4

STL - CNX • 2 stops

When to travel

April

Cheapest • 41% price drop

June

Most popular

Good to know

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We hope you love your trip to Chiang Mai!

Flight Deals

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

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from St. Louis to Chiang Mai

Thu, Mar 4 - Sun, Mar 7

6:00 am - 10:45 pmSTL Lambert-St Louis-CNX Chiang Mai

27h 45m2 stops Atlanta Hartsfield-Jackson Incheon Intl

12:20 am - 6:01 pmCNX Chiang Mai-STL Lambert-St Louis

30h 41m2 stops Incheon Intl Atlanta Hartsfield-Jackson

$1,201Korean Air

Thu, Mar 4 - Sun, Mar 7

7:05 am - 10:45 pmSTL Lambert-St Louis-CNX Chiang Mai

26h 40m2 stops Atlanta Hartsfield-Jackson Incheon Intl

12:20 am - 6:01 pmCNX Chiang Mai-STL Lambert-St Louis

30h 41m2 stops Incheon Intl Atlanta Hartsfield-Jackson

$1,202Korean Air

Thu, Mar 4 - Sun, Mar 7

7:05 am - 10:45 pmSTL Lambert-St Louis-CNX Chiang Mai

26h 40m2 stops Atlanta Hartsfield-Jackson Incheon Intl

12:20 am - 6:01 pmCNX Chiang Mai-STL Lambert-St Louis

30h 41m2 stops Incheon Intl Atlanta Hartsfield-Jackson

$1,266Korean Air

Tue, Jan 12 - Thu, Jan 28

4:06 pm - 4:00 pmSTL Lambert-St Louis-CNX Chiang Mai

34h 54m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

5:15 pm - 3:08 pmCNX Chiang Mai-STL Lambert-St Louis

58h 53m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,366Multiple Airlines

Tue, Jan 12 - Thu, Jan 28

4:06 pm - 4:00 pmSTL Lambert-St Louis-CNX Chiang Mai

34h 54m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

5:15 pm - 3:08 pmCNX Chiang Mai-STL Lambert-St Louis

58h 53m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,367Multiple Airlines

Tue, Jan 12 - Thu, Jan 28

4:06 pm - 4:00 pmSTL Lambert-St Louis-CNX Chiang Mai

34h 54m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

5:15 pm - 3:08 pmCNX Chiang Mai-STL Lambert-St Louis

58h 53m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,502Multiple Airlines

Thu, Dec 24 - Thu, Dec 31

8:00 am - 5:55 pmSTL Lambert-St Louis-CNX Chiang Mai

44h 55m2 stops Charlotte Douglas Abu Dhabi Zayed Intl

8:55 pm - 4:16 pmCNX Chiang Mai-STL Lambert-St Louis

32h 21m2 stops Abu Dhabi Zayed Intl Charlotte Douglas

$1,566Etihad Airways

Tue, Jan 12 - Thu, Jan 28

12:55 pm - 7:00 pmSTL Lambert-St Louis-CNX Chiang Mai

41h 05m3 stops Philadelphia Doha Hamad Intl Bangkok Suvarnabhumi

12:10 pm - 2:55 pmCNX Chiang Mai-STL Lambert-St Louis

39h 45m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Dallas/Fort Worth

$1,901Qatar Airways

Tue, Jan 12 - Thu, Jan 28

12:55 pm - 7:00 pmSTL Lambert-St Louis-CNX Chiang Mai

41h 05m3 stops Philadelphia Doha Hamad Intl Bangkok Suvarnabhumi

12:10 pm - 2:55 pmCNX Chiang Mai-STL Lambert-St Louis

39h 45m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Dallas/Fort Worth

$2,078Qatar Airways

Tue, Jan 12 - Thu, Jan 28

12:55 pm - 7:00 pmSTL Lambert-St Louis-CNX Chiang Mai

41h 05m3 stops Philadelphia Doha Hamad Intl Bangkok Suvarnabhumi

12:10 pm - 2:55 pmCNX Chiang Mai-STL Lambert-St Louis

39h 45m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Dallas/Fort Worth

$2,152Qatar Airways

Recent last minute flight deals from St. Louis to Chiang Mai

Sun, Nov 15 - Sun, Jan 17

6:00 am - 4:00 pmSTL Lambert-St Louis-CNX Chiang Mai

45h 00m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

5:15 pm - 3:08 pmCNX Chiang Mai-STL Lambert-St Louis

58h 53m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,328Multiple Airlines

Sun, Nov 15 - Sun, Jan 17

6:00 am - 4:00 pmSTL Lambert-St Louis-CNX Chiang Mai

45h 00m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

5:15 pm - 3:08 pmCNX Chiang Mai-STL Lambert-St Louis

58h 53m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,376Multiple Airlines

Sun, Nov 15 - Sun, Jan 17

8:50 am - 10:25 amSTL Lambert-St Louis-CNX Chiang Mai

36h 35m3 stops San Diego Phoenix Sky Harbor Intl Taipei City Taiwan Taoyuan Intl

11:25 am - 3:08 pmCNX Chiang Mai-STL Lambert-St Louis

40h 43m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,927Multiple Airlines

Sun, Nov 15 - Sun, Jan 17

8:50 am - 10:25 amSTL Lambert-St Louis-CNX Chiang Mai

36h 35m3 stops San Diego Phoenix Sky Harbor Intl Taipei City Taiwan Taoyuan Intl

11:25 am - 3:08 pmCNX Chiang Mai-STL Lambert-St Louis

40h 43m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$2,018Multiple Airlines

Sun, Nov 15 - Sun, Jan 17

8:50 am - 10:25 amSTL Lambert-St Louis-CNX Chiang Mai

36h 35m3 stops San Diego Phoenix Sky Harbor Intl Taipei City Taiwan Taoyuan Intl

11:25 am - 3:08 pmCNX Chiang Mai-STL Lambert-St Louis

40h 43m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$2,068Multiple Airlines

Sun, Nov 15 - Sun, Jan 17

8:50 am - 10:25 amSTL Lambert-St Louis-CNX Chiang Mai

36h 35m3 stops San Diego Phoenix Sky Harbor Intl Taipei City Taiwan Taoyuan Intl

11:25 am - 3:08 pmCNX Chiang Mai-STL Lambert-St Louis

40h 43m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$2,117Multiple Airlines

Sun, Nov 15 - Sun, Jan 17

8:10 am - 9:25 amSTL Lambert-St Louis-CNX Chiang Mai

36h 15m3 stops Los Angeles Doha Hamad Intl Bangkok Suvarnabhumi

7:45 pm - 10:34 pmCNX Chiang Mai-STL Lambert-St Louis

39h 49m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Chicago O'Hare Intl

$2,478Qatar Airways

Sun, Nov 15 - Sun, Jan 17

9:50 am - 9:25 amSTL Lambert-St Louis-CNX Chiang Mai

34h 35m3 stops Boston Logan Intl Doha Hamad Intl Bangkok Suvarnabhumi

7:45 pm - 8:29 pmCNX Chiang Mai-STL Lambert-St Louis

37h 44m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Chicago O'Hare Intl

$2,535Qatar Airways

Sun, Nov 15 - Sun, Jan 17

8:10 am - 9:25 amSTL Lambert-St Louis-CNX Chiang Mai

36h 15m3 stops Los Angeles Doha Hamad Intl Bangkok Suvarnabhumi

7:45 pm - 10:34 pmCNX Chiang Mai-STL Lambert-St Louis

39h 49m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Chicago O'Hare Intl

$2,595Qatar Airways

Booking Insights

Price, demand and travel trends for St. Louis to Chiang Mai flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

How much is a round-trip flight from St. Louis to Chiang Mai? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Chiang Mai departing in march.

Find deals

High season	June
Cheapest flight	$675

The most popular month to fly with an average 21% increase in travelers.

One-way flight from St. Louis to Chiang Mai

When to book flights from St. Louis to Chiang Mai

Are your dates flexible? Find out the best times to travel from St. Louis to Chiang Mai based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from St. Louis to Chiang Mai?
Two cabin classes are available on flights from St. Louis to Chiang Mai:

• Economy Class
• Premium Economy Class
Do I need a passport to fly from St. Louis to Chiang Mai?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a St. Louis to Chiang Mai flight?
Round-trip flights from St. Louis to Chiang Mai range from $1,394 to $1,964, with an average of $1,900 over the past 12 months. Anything below $1,394 counts as a good deal.
How are flight prices from St. Louis to Chiang Mai looking right now?
One-way fares from St. Louis to Chiang Mai are currently higher than usual. Average one-way flight prices are about $1,019, which is 41% above the typical average for this route.
What car rental options are available at Chiang Mai Airport (CNX)?
Chiang Mai Airport (CNX) hosts 5 major car rental companies, with daily rates averaging $31 for economy cars. Top options include:

• Drive Car Rental
• Alamo
• Yesaway
• ASAP Car Rentals
• Sixt
Which airports can I use when flying from St. Louis to Chiang Mai?
Flights from St. Louis to Chiang Mai usually depart from Lambert-St Louis (STL) and arrive at Chiang Mai (CNX).
Can I save money by using flexible dates for flights from St. Louis to Chiang Mai?
Yes. Flexible dates can save you up to 50% on flights from St. Louis to Chiang Mai. Thursday is the cheapest departure day at $1,273 round-trip on average, while Saturday is the most expensive at $2,497, a difference of $1,224.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What is the time difference between St. Louis and Chiang Mai?
Chiang Mai is 13 hours ahead of St. Louis (Indochina Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Chiang Mai?
Some of the most popular sights in Chiang Mai are Chiang Mai Night Bazaar, Tha Phae Gate and Chiang Mai International Exhibition and Convention Centre. These are among the most viewed places in Chiang Mai on KAYAK.

If your dates are flexible, aim for a Thursday departure and avoid flying on Saturday. On this route, Thursday flights average $1,273, about $1,224 less than Saturday fares (49% savings) based on the last 12 months.
If you can choose when to travel, plan your St. Louis to Chiang Mai trip for April. Fares historically average $1,114 round-trip in that month - typically $850 less than the most expensive month, which is June (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Chiang Mai Airport.

• De Lanna Hotel
• 99 The Gallery Hotel
• Bodhi Serene, Chiang Mai

More options for your flight from St. Louis to Chiang Mai

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STL - CNX

$675 Find Cheap Flights from St. Louis to Chiang Mai - Compare and Save

Everything you should know

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

Recent round-trip flight deals from St. Louis to Chiang Mai

Recent one-way flight deals from St. Louis to Chiang Mai

Recent last minute flight deals from St. Louis to Chiang Mai

Price, demand and travel trends for St. Louis to Chiang Mai flights

How much is a round-trip flight from St. Louis to Chiang Mai?

Which airline is the cheapest to fly from St. Louis to Chiang Mai?

Key details for St. Louis to Chiang Mai flights

High season

Cheapest flight

When to book flights from St. Louis to Chiang Mai

Your St. Louis to Chiang Mai flight questions, answered

Your guide to booking St. Louis to Chiang Mai flights

More options for your flight from St. Louis to Chiang Mai

Complete your trip to Chiang Mai with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from St. Louis to Chiang Mai

Find direct flights to and from St. Louis and Chiang Mai

Flights from domestic origins to Chiang Mai

Flights to other popular destinations

Find deals for your return flight