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 44% on flights from St. Louis to Chiang Mai. Sunday is the cheapest departure day at ฿37,568 return on average, while Monday is the most expensive at ฿66,233, a difference of ฿28,665. 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, Chang Puak Gate, and Chiang Mai 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 ฿43,166 to ฿411,530. That means the highest observed fare was about 10x higher than the lowest one.

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 rental companies, with daily rates starting from around ฿1,037 for economy cars. Top options include: • Drive Car Rental • Alamo • Sixt • Yesaway • ASAP Car Rentals

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 ฿40,939 to ฿66,241, with an average of ฿57,026 over the past 12 months. Anything below ฿40,939 counts as a good deal.

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

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from St. Louis to Chiang Mai. It's 35% cheaper than the average day, while Monday is the most expensive, with prices 16% higher.

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

เอทิฮัดแอร์เวย์ (฿44,313) and STARLUX Airlines (฿45,999) are the cheapest airlines to fly return from St. Louis to Chiang Mai according to KAYAK data over the last 5 days.

Cheap Flights from St. Louis to Chiang Mai | KAYAK

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Cheapest return flight

฿43,166

Typical prices: ฿40,939-฿66,241

Multiple Airlines

Thu 15/11Wed 17/1

STL - CNX • 2 stops

When to travel

April

Cheapest • 34% 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

Sun 15 Nov - Sun 17 Jan

06:00 - 16:00STL Lambert-St Louis-CNX Chiang Mai

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

17:15 - 14:56CNX Chiang Mai-STL Lambert-St Louis

58h 41m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

฿43,166Multiple Airlines

Sun 15 Nov - Sun 17 Jan

14:23 - 16:00STL Lambert-St Louis-CNX Chiang Mai

36h 37m2 stops Phoenix Sky Harbor Intl Taipei City Taiwan Taoyuan Intl

17:15 - 14:56CNX Chiang Mai-STL Lambert-St Louis

58h 41m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

฿43,773Multiple Airlines

Sun 15 Nov - Sun 17 Jan

06:00 - 16:00STL Lambert-St Louis-CNX Chiang Mai

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

17:15 - 14:56CNX Chiang Mai-STL Lambert-St Louis

58h 41m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

฿44,144Multiple Airlines

Tue 12 Jan - Thu 28 Jan

19:11 - 17:55STL Lambert-St Louis-CNX Chiang Mai

57h 44m2 stops Boston Logan Intl Abu Dhabi Zayed Intl

20:55 - 13:30CNX Chiang Mai-STL Lambert-St Louis

29h 35m2 stops Abu Dhabi Zayed Intl Charlotte Douglas

฿44,313เอทิฮัดแอร์เวย์

Sun 15 Nov - Sun 17 Jan

14:23 - 16:00STL Lambert-St Louis-CNX Chiang Mai

36h 37m2 stops Phoenix Sky Harbor Intl Taipei City Taiwan Taoyuan Intl

17:15 - 14:56CNX Chiang Mai-STL Lambert-St Louis

58h 41m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

฿44,751Multiple Airlines

Mon 11 Jan - Mon 1 Feb

14:28 - 16:00STL Lambert-St Louis-CNX Chiang Mai

36h 32m2 stops Phoenix Sky Harbor Intl Taipei City Taiwan Taoyuan Intl

18:10 - 23:55CNX Chiang Mai-STL Lambert-St Louis

42h 45m2 stops Taipei City Taiwan Taoyuan Intl Phoenix Sky Harbor Intl

฿45,999STARLUX Airlines

Tue 12 Jan - Thu 28 Jan

19:11 - 17:55STL Lambert-St Louis-CNX Chiang Mai

57h 44m2 stops Boston Logan Intl Abu Dhabi Zayed Intl

20:55 - 13:30CNX Chiang Mai-STL Lambert-St Louis

29h 35m2 stops Abu Dhabi Zayed Intl Charlotte Douglas

฿46,100เอทิฮัดแอร์เวย์

Wed 21 Apr - Mon 3 May

15:24 - 10:25STL Lambert-St Louis-CNX Chiang Mai

31h 01m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

11:35 - 23:44CNX Chiang Mai-STL Lambert-St Louis

48h 09m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

฿47,011Multiple Airlines

Wed 21 Apr - Mon 3 May

16:30 - 19:10STL Lambert-St Louis-CNX Chiang Mai

38h 40m3 stops Chicago O'Hare Intl Doha Hamad Intl Bangkok Suvarnabhumi

20:00 - 23:46CNX Chiang Mai-STL Lambert-St Louis

39h 46m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Chicago O'Hare Intl

฿48,056Qatar Airways

Tue 12 Jan - Thu 28 Jan

15:54 - 16:00STL Lambert-St Louis-CNX Chiang Mai

35h 06m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

17:15 - 14:56CNX Chiang Mai-STL Lambert-St Louis

58h 41m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

฿49,372Multiple 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 with more confidence.

Prices

Airlines

What's the cheapest day of the week to fly from St. Louis to Chiang Mai?: Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from St. Louis to Chiang Mai. It's 35% cheaper than the average day, while Monday is the most expensive, with prices 16% higher.

Find deals

High season	June
Cheapest flight	฿43,166

The most popular month to fly with an average 88% increase in travellers.

Return 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 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.

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?
Return flights from St. Louis to Chiang Mai range from ฿40,939 to ฿66,241, with an average of ฿57,026 over the past 12 months. Anything below ฿40,939 counts as a good deal.
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 ฿43,166 to ฿411,530. That means the highest observed fare was about 10x higher than the lowest one.
Which car hire options are available at Chiang Mai Airport (CNX)?
Chiang Mai Airport (CNX) hosts 5 major car rental companies, with daily rates starting from around ฿1,037 for economy cars. Top options include:

• Drive Car Rental
• Alamo
• Sixt
• Yesaway
• ASAP Car Rentals
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 44% on flights from St. Louis to Chiang Mai. Sunday is the cheapest departure day at ฿37,568 return on average, while Monday is the most expensive at ฿66,233, a difference of ฿28,665.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
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 popular places can I visit in Chiang Mai?
Some of the most popular sights in Chiang Mai are Tha Phae Gate, Chang Puak Gate, and Chiang Mai Gate. These are among the most viewed places in Chiang Mai on KAYAK.

If your dates are flexible, aim for a Sunday departure and avoid flying on Monday. On this route, Sunday flights average ฿37,568, which is about ฿28,665 less than Monday fares (43% 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 ฿37,568 return in that month – typically ฿28,665 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
• Bodhi Serene, Chiang Mai
• 99 The Gallery Hotel

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STL - CNX

฿43,166 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 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?

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 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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