CNX - STL

$765 Find Cheap Flights from Chiang Mai to St. Louis - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,621
Typical prices: $1,697-$1,741
Multiple Airlines
Sun 11/4Sun 11/11
CNX - STL • 2 stops
Cheapest one-way
$765
Typical prices: $602-$693
Multiple Airlines
Wed 10/24
CNX - STL • 3 stops
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Flight Deals

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

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

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

Wed, Nov 4 - Wed, Nov 11
Multiple Airlines Logo
11:50 am - 11:59 pmCNX  Chiang Mai-STL Lambert-St Louis
49h 09m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl
Multiple Airlines Logo
6:00 am - 10:35 amSTL  Lambert-St Louis-CNX Chiang Mai
39h 35m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl
$1,621Multiple Airlines
Wed, Nov 4 - Wed, Nov 11
Multiple Airlines Logo
7:40 pm - 11:19 amCNX  Chiang Mai-STL Lambert-St Louis
28h 39m3 stops Hong Kong Intl Los Angeles Dallas/Fort Worth
Multiple Airlines Logo
4:05 pm - 2:20 pmSTL  Lambert-St Louis-CNX Chiang Mai
33h 15m3 stops Toronto Pearson Intl Paris Charles de Gaulle Shanghai Pu Dong
$1,817Multiple Airlines
Wed, Nov 4 - Wed, Nov 11
Multiple Airlines Logo
7:45 pm - 11:59 pmCNX  Chiang Mai-STL Lambert-St Louis
41h 14m3 stops Bangkok Suvarnabhumi Hong Kong Intl Seattle/Tacoma Intl
Multiple Airlines Logo
6:00 am - 10:35 amSTL  Lambert-St Louis-CNX Chiang Mai
39h 35m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl
$1,894Multiple Airlines
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Key details for Chiang Mai to St. Louis flights

Cheapest flight

$765
One-way flight from Chiang Mai to St. Louis

When to book flights from Chiang Mai to St. Louis

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

Your Chiang Mai to St. Louis flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

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

    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 Chiang Mai to St. Louis changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $1,621 to $1,894. That means the highest observed fare was about 16% higher than the lowest one.

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

    One-way fares from Chiang Mai to St. Louis are currently higher than usual. Average one-way flight prices are about $774, which is 11% above the typical average for this route.

  • What car rental options are available at Lambert-St Louis Airport (STL)?

    Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates starting from around $31 for economy cars. Top options include:

    • Hertz
    • Budget
    • Alamo
    • Enterprise Rent-A-Car
    • Payless

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

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

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

    Yes. Flexible dates can save you up to 3% on flights from Chiang Mai to St. Louis. Wednesday is the cheapest departure day at $1,697 round-trip on average, while Friday is the most expensive at $1,741, a difference of $44.

    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 Chiang Mai and St. Louis?

    St. Louis is 12 hours behind Chiang Mai (Central Time vs Indochina Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in St. Louis?

    Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

Your guide to booking Chiang Mai to St. Louis flights

Get tips on when to book, when to fly and what to know before your trip.

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

Complete your trip to St. Louis with a hotel stay or car rental

Car rentals in St. Louis
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