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?

Only Economy Class is available on flights from St. Louis to Chiang Mai.

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

On the St. Louis to Chiang Mai route, being flexible with your departure day can save you up to 44%. Sunday is the cheapest day at $1,114 round-trip on average, while Monday is the most expensive at $1,964: a $850 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

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 Mae Ping River. 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.

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

Chiang Mai is 12 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 starting from around $12 for economy cars. Top options include: · Drive Car Rental · Alamo · Sixt · Hertz · Yesaway

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 $1,180 to $1,964, with an average of $1,512 over the past 12 months. Anything below $1,180 counts as a good deal.

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

China Airlines ($1,374) offered the cheapest round-trip ticket from St. Louis to Chiang Mai in the last 5 days.

Cheap Flights from St. Louis to Chiang Mai | KAYAK

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Cheapest round-trip

$1,207

Typical prices: $1,180-$1,964

Multiple Airlines

Fri 1/12Sun 1/28

STL - CNX • 2 stops

When to travel

September

Cheapest • 33% price drop

June

Most popular

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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

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

Tue, Jan 12 - Thu, Jan 28

8:13 am - 6:05 amSTL Lambert-St Louis-CNX Chiang Mai

32h 52m2 stops Charlotte Douglas Abu Dhabi Zayed Intl

9:10 am - 1:13 pmCNX Chiang Mai-STL Lambert-St Louis

41h 03m2 stops Abu Dhabi Zayed Intl Charlotte Douglas

$1,207Multiple Airlines

Tue, Jan 12 - Thu, Jan 28

9:52 am - 6:05 amSTL Lambert-St Louis-CNX Chiang Mai

31h 13m2 stops Boston Logan Intl Abu Dhabi Zayed Intl

9:10 am - 1:13 pmCNX Chiang Mai-STL Lambert-St Louis

41h 03m2 stops Abu Dhabi Zayed Intl Charlotte Douglas

$1,207Multiple Airlines

Mon, Jan 11 - Mon, Jan 18

3:54 pm - 10:25 amSTL Lambert-St Louis-CNX Chiang Mai

29h 31m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

11:25 am - 2:56 pmCNX Chiang Mai-STL Lambert-St Louis

40h 31m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,214Multiple Airlines

Tue, Dec 1 - Fri, Dec 4

3:24 pm - 10:35 amSTL Lambert-St Louis-CNX Chiang Mai

30h 11m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

11:50 am - 2:26 pmCNX Chiang Mai-STL Lambert-St Louis

39h 36m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,337Multiple Airlines

Mon, Jan 4 - Thu, Jan 21

5:05 am - 10:25 amSTL Lambert-St Louis-CNX Chiang Mai

40h 20m2 stops Los Angeles Los Angeles Taipei City Taiwan Taoyuan Intl

11:25 am - 2:56 pmCNX Chiang Mai-STL Lambert-St Louis

40h 31m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,349Multiple Airlines

Tue, Dec 1 - Fri, Dec 4

3:24 pm - 10:35 amSTL Lambert-St Louis-CNX Chiang Mai

30h 11m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

11:50 am - 2:26 pmCNX Chiang Mai-STL Lambert-St Louis

39h 36m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,371Multiple Airlines

Thu, Oct 22 - Thu, Oct 29

11:31 am - 1:45 pmSTL Lambert-St Louis-CNX Chiang Mai

38h 14m3 stops Chicago O'Hare Intl Doha Hamad Intl Bangkok Suvarnabhumi

7:45 pm - 8:57 pmCNX Chiang Mai-STL Lambert-St Louis

37h 12m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Chicago O'Hare Intl

$1,646Qatar Airways

Tue, Jan 12 - Thu, Jan 28

6:00 am - 11:20 amSTL Lambert-St Louis-CNX Chiang Mai

40h 20m3 stops Philadelphia Doha Hamad Intl Bangkok Suvarnabhumi

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

36h 44m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Chicago O'Hare Intl

$1,647Qatar Airways

Tue, Jan 12 - Thu, Jan 28

6:00 am - 11:20 amSTL Lambert-St Louis-CNX Chiang Mai

40h 20m3 stops Philadelphia Doha Hamad Intl Bangkok Suvarnabhumi

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

36h 44m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Chicago O'Hare Intl

$1,648Qatar Airways

Mon, Jan 4 - Thu, Jan 21

12:33 pm - 9:25 amSTL Lambert-St Louis-CNX Chiang Mai

31h 52m3 stops Philadelphia Doha Hamad Intl Bangkok Suvarnabhumi

7:45 pm - 8:24 pmCNX Chiang Mai-STL Lambert-St Louis

37h 39m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Philadelphia

$1,747Qatar 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 from St. Louis to Chiang Mai with more confidence.

Prices

Airlines

What's the cheapest day of the week to fly from St. Louis to Chiang Mai?

Sunday is the cheapest day of the week to fly from St. Louis to Chiang Mai, it is 27% cheaper than the average day. Monday is the most expensive day with flight prices 29% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Low season	September
High season	June
Cheapest flight	$1,207

Best time to beat the crowds with an average 33% drop in price.

Most popular time to fly with an average 30% increase in price.

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.

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?
Only Economy Class is available on flights from St. Louis to Chiang Mai.
Can I save money by using flexible dates for flights from St. Louis to Chiang Mai?
On the St. Louis to Chiang Mai route, being flexible with your departure day can save you up to 44%. Sunday is the cheapest day at $1,114 round-trip on average, while Monday is the most expensive at $1,964: a $850 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
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 Mae Ping River. 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.
What is the time difference between St. Louis and Chiang Mai?
Chiang Mai is 12 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 starting from around $12 for economy cars. Top options include:
· Drive Car Rental
· Alamo
· Sixt
· Hertz
· Yesaway
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 $1,180 to $1,964, with an average of $1,512 over the past 12 months. Anything below $1,180 counts as a good deal.

If your dates can be flexible, aim for a Sunday departure instead of Monday. On this route, Sunday flights average $1,114 - about $850 less than Monday (43% savings) based on the last 12 months.
If you can choose when to travel, plan your St. Louis to Chiang Mai trip for September. Fares historically average $1,007 round-trip in that month - typically $957 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.
- Le Naview @Prasingh
- Bodhi Serene, Chiang Mai
- 99 The Gallery Hotel

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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

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

What's the cheapest day of the week to fly from St. Louis to Chiang Mai?

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

Key details for St. Louis to Chiang Mai flights

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When to book flights from St. Louis to Chiang Mai

Your St. Louis to Chiang Mai flight questions, answered

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