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?

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 ฿36,973 return on average, while Monday is the most expensive at ฿65,183 – a ฿28,211 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 Tha Phae Gate, Wat Jed Yot, and Chang Puak Gate. 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.

Have flight prices from St. Louis to Chiang Mai changed much recently?

Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about ฿40,059 to ฿379,981. That means the highest observed fare was about 9x higher than the lowest one.

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 ฿49,813, which is 113% above the typical average for this route.

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.

Which car hire options are available at Chiang Mai Airport (CNX)?

Chiang Mai Airport (CNX) hosts 5 major car hire companies, with daily rates starting from around ฿413 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?

Return flights from St. Louis to Chiang Mai range from ฿39,157 to ฿65,191, with an average of ฿50,182 over the past 12 months. Anything below ฿39,157 counts as a good deal.

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

เอทิฮัดแอร์เวย์ (฿41,188) and China Airlines (฿43,146) are the cheapest airlines to fly return from St. Louis to Chiang Mai according to KAYAK data over the last 5 days.

฿25,954 CHEAP FLIGHTS from St. Louis to Chiang Mai (STL - CNX)

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Cheapest return flight

฿40,059

Typical prices: ฿39,157-฿65,191

Multiple Airlines

Fri 12/1Sun 28/1

STL - CNX • 2 stops

Cheapest one-way flight

฿25,954

Typical prices: ฿22,645-฿28,171

Multiple Airlines

Tue 16/10

STL - CNX • 3 stops

When to travel

September

Cheapest • 33% price drop

June

Most popular

Good to know

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We hope you enjoy 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.

Return

One-way

Recent return flight deals from St. Louis to Chiang Mai

Tue 12 Jan - Thu 28 Jan

09:52 - 06:05STL Lambert-St Louis-CNX Chiang Mai

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

09:10 - 13:13CNX Chiang Mai-STL Lambert-St Louis

41h 03m2 stops Abu Dhabi Zayed Intl Charlotte Douglas

฿40,059Multiple Airlines

Tue 12 Jan - Thu 28 Jan

15:54 - 10:25STL Lambert-St Louis-CNX Chiang Mai

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

11:25 - 14:56CNX Chiang Mai-STL Lambert-St Louis

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

฿40,823Multiple Airlines

Tue 12 Jan - Thu 28 Jan

13:58 - 06:05STL Lambert-St Louis-CNX Chiang Mai

51h 07m2 stops Charlotte Douglas Abu Dhabi Zayed Intl

09:10 - 17:49CNX Chiang Mai-STL Lambert-St Louis

45h 39m2 stops Abu Dhabi Zayed Intl Charlotte Douglas

฿41,188เอทิฮัดแอร์เวย์

Mon 4 Jan - Thu 21 Jan

05:05 - 10:25STL Lambert-St Louis-CNX Chiang Mai

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

11:25 - 14:56CNX Chiang Mai-STL Lambert-St Louis

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

฿42,316Multiple Airlines

Mon 4 Jan - Thu 21 Jan

16:32 - 10:25STL Lambert-St Louis-CNX Chiang Mai

28h 53m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

11:25 - 14:56CNX Chiang Mai-STL Lambert-St Louis

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

฿43,146China Airlines

Mon 4 Jan - Thu 21 Jan

05:05 - 10:25STL Lambert-St Louis-CNX Chiang Mai

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

11:25 - 16:20CNX Chiang Mai-STL Lambert-St Louis

41h 55m2 stops Taipei City Taiwan Taoyuan Intl San Francisco

฿44,108Multiple Airlines

Tue 1 Dec - Fri 4 Dec

15:24 - 10:35STL Lambert-St Louis-CNX Chiang Mai

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

11:50 - 14:26CNX Chiang Mai-STL Lambert-St Louis

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

฿44,374Multiple Airlines

Mon 4 Jan - Thu 21 Jan

05:05 - 10:25STL Lambert-St Louis-CNX Chiang Mai

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

11:25 - 14:56CNX Chiang Mai-STL Lambert-St Louis

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

฿44,772Multiple Airlines

Tue 1 Dec - Fri 4 Dec

06:04 - 10:35STL Lambert-St Louis-CNX Chiang Mai

39h 31m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

11:50 - 16:40CNX Chiang Mai-STL Lambert-St Louis

41h 50m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

฿46,398Multiple Airlines

Tue 12 Jan - Thu 28 Jan

15:43 - 06:05STL Lambert-St Louis-CNX Chiang Mai

73h 22m3 stops Washington, D.C. Reagan-National Boston Logan Intl Abu Dhabi Zayed Intl

09:10 - 17:49CNX Chiang Mai-STL Lambert-St Louis

45h 39m2 stops Abu Dhabi Zayed Intl Charlotte Douglas

฿49,286Multiple Airlines

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 and 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	฿25,954

Best time to beat the crowds (33% less expensive on average)

Most popular time to fly (30% more expensive on average)

Flights 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 return price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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).
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 ฿36,973 return on average, while Monday is the most expensive at ฿65,183 – a ฿28,211 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 Tha Phae Gate, Wat Jed Yot, and Chang Puak Gate. 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.
Have flight prices from St. Louis to Chiang Mai changed much recently?
Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about ฿40,059 to ฿379,981. That means the highest observed fare was about 9x higher than the lowest one.
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 ฿49,813, which is 113% above the typical average for this route.
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.
Which car hire options are available at Chiang Mai Airport (CNX)?
Chiang Mai Airport (CNX) hosts 5 major car hire companies, with daily rates starting from around ฿413 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?
Return flights from St. Louis to Chiang Mai range from ฿39,157 to ฿65,191, with an average of ฿50,182 over the past 12 months. Anything below ฿39,157 counts as a good deal.

If your dates are flexible, aim for a Sunday departure instead of Monday. On this route, Sunday flights average ฿36,973 – about ฿28,211 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 ฿33,421 return in that month – typically ฿31,762 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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STL - CNX

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Everything you should know

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

Recent return 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

Low season

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 hire

Information on your arrival and departure airports

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

Flights from domestic origins to Chiang Mai

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