Find flights
Deals
When to book
FAQs & Tips

STL - CNX

$1,420 Find cheap flights from St. Louis to Chiang Mai

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Chiang Mai departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Wed 7/10
Wed 7/17

Search hundreds of travel sites at once for deals on flights to Chiang Mai

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Chiang Mai, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Chiang Mai, as well as popular online travel agencies
In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Chiang Mai that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
2:25 pm - 10:25 amSTL-CNX
32h 00m2 stops
11:45 am - 2:27 pmCNX-STL
38h 42m2 stops
$1,420
Find Deal
Tue, Oct 1 - Sun, Nov 3
11:46 am - 9:20 amSTL-CNX
33h 34m3 stops
7:45 pm - 9:31 pmCNX-STL
38h 46m3 stops
$1,626Qatar Airways
Find Deal
Tue, Oct 1 - Sun, Nov 3
2:54 pm - 11:20 amSTL-CNX
31h 26m3 stops
7:45 pm - 9:37 pmCNX-STL
38h 52m3 stops
$2,000Qatar Airways
Find Deal
Sun, Dec 1 - Fri, Dec 20
6:45 am - 10:05 pmSTL-CNX
27h 20m2 stops
11:15 pm - 8:39 pmCNX-STL
34h 24m2 stops
$2,069Delta
Find Deal
Fri, Nov 1 - Tue, Nov 26
1:38 pm - 9:20 amSTL-CNX
31h 42m3 stops
7:45 pm - 9:31 pmCNX-STL
38h 46m3 stops
$2,080Qatar Airways
Find Deal
Fri, Nov 1 - Tue, Nov 26
6:30 am - 10:05 pmSTL-CNX
26h 35m2 stops
11:15 pm - 8:43 pmCNX-STL
34h 28m2 stops
$2,099Delta
Find Deal
Sun, Dec 1 - Fri, Dec 20
3:35 pm - 8:45 amSTL-CNX
29h 10m3 stops
11:15 pm - 4:34 pmCNX-STL
30h 19m2 stops
$2,199
Find Deal
Tue, Oct 1 - Sun, Nov 3
7:23 pm - 1:45 pmSTL-CNX
30h 22m3 stops
11:15 pm - 3:56 pmCNX-STL
29h 41m2 stops
$2,547
Find Deal
Fri, Nov 1 - Tue, Nov 26
12:58 pm - 1:45 pmSTL-CNX
35h 47m3 stops
11:15 pm - 2:49 pmCNX-STL
28h 34m2 stops
$2,581
Find Deal
Sun, Dec 1 - Fri, Dec 20
12:24 pm - 6:55 pmSTL-CNX
41h 31m3 stops
12:00 pm - 1:55 pmCNX-STL
62h 55m2 stops
$4,953
Find Deal
Sun, Dec 1 - Fri, Dec 20

Good to know

Cheapest flight

$1,420
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.

FAQs for booking flights from St. Louis to Chiang Mai

  • What is the cheapest flight from St. Louis to Chiang Mai?

    In the last 3 days, the lowest price for a flight from St. Louis to Chiang Mai was $1,420 for a round-trip ticket.

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

    A passport is required to fly from St. Louis to Chiang Mai.

  • Which aircraft models fly most regularly from St. Louis to Chiang Mai?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Chiang Mai?

    oneworld, and SkyTeam are the airline alliances operating flights between St. Louis and Chiang Mai, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from St. Louis to Chiang Mai?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Chiang Mai.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Chiang Mai?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chiang Mai from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Chiang Mai?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chiang Mai with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and CNX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Chiang Mai?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chiang Mai from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from St. Louis to Chiang Mai

One-way flight deals

multi-stopMultiple Airlines
8411 miSTL-CNX

Search by stops

Last minute flights from St. Louis to Chiang Mai

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Chiang Mai that are departing in the next 10 days.
6/11Tue
multi-stop
45h 09mSTL-CNX
6/18Tue
multi-stop
34h 40mCNX-STL
$2,917
6/11Tue
multi-stop
30h 10mSTL-CNX
6/18Tue
multi-stop
64h 04mCNX-STL
$2,956
6/11Tue
multi-stop
45h 09mSTL-CNX
6/17Mon
multi-stop
35h 14mCNX-STL
$2,989
6/11Tue
multi-stop
34h 55mSTL-CNX
6/18Tue
multi-stop
34h 35mCNX-STL
$3,010
6/11Tue
multi-stop
39h 58mSTL-CNX
6/17Mon
multi-stop
50h 36mCNX-STL
$4,211

Search by stops

Search by price

St. Louis - Chiang Mai Flights

Departure:

St. Louis (STL)United States

Destination:

Chiang Mai (CNX)Thailand

Return flight deals:

Chiang Mai - St. Louis

Cabin classes:

Browse destinations: