How do I get Price Alerts for flights from St. Louis to Chiang Mai?

Confirm your travel details to search for the latest offers for flights from St. Louis to Chiang Mai . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from St. Louis to Chiang Mai with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

When did momondo last update prices for flights from Lambert-St Louis Airport to Chiang Mai Airport?

Prices for flights from Lambert-St Louis Airport to Chiang Mai Airport are refreshed on a daily basis.

How old do you have to be to fly from Lambert-St Louis Airport to Chiang Mai Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Chiang Mai Airport.

What documentation or ID do you need to fly to Chiang Mai Airport?

The travel and health documents required for your trip to Chiang Mai Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chiang Mai Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$1,068 Cheap Flights from St. Louis to Chiang Mai in 2025

1 adult

0 bags

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Find the cheapest flights from St. Louis to Chiang Mai

Round-trip

One-way

Cheap round-trip flights

6:01 am - 9:55 pmSTL-CNX

27h 54m2 stops

11:15 pm - 10:00 pmCNX-STL

34h 45m2 stops

$1,068Delta

Find Deal

Fri, Sep 19 - Tue, Sep 23

6:30 pm - 10:25 amSTL-CNX

27h 55m2 stops

11:35 am - 11:59 pmCNX-STL

48h 24m2 stops

$1,177EVA Air

Find Deal

Mon, Sep 22 - Wed, Oct 1

6:30 pm - 10:25 amSTL-CNX

27h 55m2 stops

11:35 am - 2:39 pmCNX-STL

39h 04m2 stops

$1,201EVA Air

Find Deal

Mon, Sep 22 - Wed, Oct 1

6:30 pm - 10:25 amSTL-CNX

27h 55m2 stops

8:00 pm - 2:39 pmCNX-STL

54h 39m3 stops

$1,279

Find Deal

Mon, Sep 22 - Wed, Oct 1

6:00 am - 10:25 amSTL-CNX

40h 25m2 stops

11:35 am - 11:59 pmCNX-STL

48h 24m2 stops

$1,292EVA Air

Find Deal

Sat, Aug 30 - Sat, Sep 6

6:30 pm - 10:25 amSTL-CNX

27h 55m2 stops

8:00 pm - 2:39 pmCNX-STL

54h 39m3 stops

$1,300

Find Deal

Mon, Sep 22 - Wed, Oct 1

5:49 pm - 11:40 pmSTL-CNX

41h 51m2 stops

12:45 am - 2:39 pmCNX-STL

49h 54m2 stops

$1,325

Find Deal

Mon, Sep 22 - Tue, Sep 30

5:49 pm - 11:40 pmSTL-CNX

41h 51m2 stops

12:45 am - 2:39 pmCNX-STL

49h 54m2 stops

$1,330

Find Deal

Mon, Sep 22 - Tue, Sep 30

9:56 am - 1:45 pmSTL-CNX

39h 49m3 stops

11:55 am - 7:10 pmCNX-STL

43h 15m3 stops

$1,518Cathay Pacific

Find Deal

Mon, Sep 22 - Wed, Oct 1

9:56 am - 1:45 pmSTL-CNX

39h 49m3 stops

11:55 am - 7:10 pmCNX-STL

43h 15m3 stops

$1,688Cathay Pacific

Find Deal

Mon, Sep 22 - Wed, Oct 1

EVA Air flights from St. Louis to Chiang Mai

Our best EVA Air deals on St. Louis to Chiang Mai flight tickets

EVA Air

Sep 22

STL6:30 pmLambert-St Louis

27h 55m

2 stops

CNX10:25 amChiang Mai

Oct 1

CNX11:35 amChiang Mai

48h 24m

2 stops

STL11:59 pmLambert-St Louis

$1,177

Find similar

EVA Air

Sep 22

STL6:30 pmLambert-St Louis

27h 55m

2 stops

CNX10:25 amChiang Mai

Oct 1

CNX11:35 amChiang Mai

39h 04m

2 stops

STL2:39 pmLambert-St Louis

$1,201

Find similar

EVA Air

Aug 30

STL6:00 amLambert-St Louis

40h 25m

2 stops

CNX10:25 amChiang Mai

Sep 6

CNX11:35 amChiang Mai

48h 24m

2 stops

STL11:59 pmLambert-St Louis

$1,292

Find similar

Cathay Pacific flights from St. Louis to Chiang Mai

Our best Cathay Pacific deals on St. Louis to Chiang Mai flight tickets

Cathay Pacific

Sep 22

STL9:56 amLambert-St Louis

39h 49m

3 stops

CNX1:45 pmChiang Mai

Oct 1

CNX11:55 amChiang Mai

43h 15m

3 stops

STL7:10 pmLambert-St Louis

$1,518

Find similar

Cathay Pacific

Sep 22

STL9:56 amLambert-St Louis

39h 49m

3 stops

CNX1:45 pmChiang Mai

Oct 1

CNX11:55 amChiang Mai

43h 15m

3 stops

STL7:10 pmLambert-St Louis

$1,688

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisChiang Mai

STL - CNX

STLCNX

Lambert-St Louis

Fri 9/19

6:01 am-9:55 pm

2 stops27h 54m

Chiang Mai

Tue 9/23

11:15 pm-10:00 pm

2 stops34h 45m

$1,068

St. LouisChiang Mai

STL - CNX

STLCNX

Lambert-St Louis

Mon 9/22

6:30 pm-10:25 am

2 stops27h 55m

Chiang Mai

Wed 10/1

11:35 am-11:59 pm

2 stops48h 24m

$1,177

St. LouisChiang Mai

STL - CNX

STLCNX

Lambert-St Louis

Mon 9/22

6:30 pm-10:25 am

2 stops27h 55m

Chiang Mai

Wed 10/1

11:35 am-2:39 pm

2 stops39h 04m

$1,201

St. LouisChiang Mai

STL - CNX

STLCNX

Lambert-St Louis

Mon 9/22

6:30 pm-10:25 am

2 stops27h 55m

Chiang Mai

Wed 10/1

8:00 pm-2:39 pm

3 stops54h 39m

$1,279

St. LouisChiang Mai

STL - CNX

STLCNX

Lambert-St Louis

Sat 8/30

6:00 am-10:25 am

2 stops40h 25m

Chiang Mai

Sat 9/6

11:35 am-11:59 pm

2 stops48h 24m

$1,292

St. LouisChiang Mai

STL - CNX

STLCNX

Lambert-St Louis

Mon 9/22

6:30 pm-10:25 am

2 stops27h 55m

Chiang Mai

Wed 10/1

8:00 pm-2:39 pm

3 stops54h 39m

$1,300

St. LouisChiang Mai

STL - CNX

STLCNX

Lambert-St Louis

Mon 9/22

5:49 pm-11:40 pm

2 stops41h 51m

Chiang Mai

Tue 9/30

12:45 am-2:39 pm

2 stops49h 54m

$1,325

St. LouisChiang Mai

STL - CNX

STLCNX

Lambert-St Louis

Mon 9/22

5:49 pm-11:40 pm

2 stops41h 51m

Chiang Mai

Tue 9/30

12:45 am-2:39 pm

2 stops49h 54m

$1,330

St. LouisChiang Mai

STL - CNX

STLCNX

Lambert-St Louis

Mon 9/22

9:56 am-1:45 pm

3 stops39h 49m

Chiang Mai

Wed 10/1

11:55 am-7:10 pm

3 stops43h 15m

$1,518

St. LouisChiang Mai

STL - CNX

STLCNX

Lambert-St Louis

Mon 9/22

9:56 am-1:45 pm

3 stops39h 49m

Chiang Mai

Wed 10/1

11:55 am-7:10 pm

3 stops43h 15m

$1,688

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from St. Louis to Chiang Mai

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Chiang Mai according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Chiang Mai (STL to CNX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Chiang Mai

Best Price Found	$1,068
Fastest flight time	27h 54m
Direct flights	None
Airports in Chiang Mai	1 airport

The best flight deal from St. Louis to Chiang Mai found on momondo in the last 72 hours is $1,068

The fastest flight from St. Louis to Chiang Mai takes 27h 54m

There are no direct flights from St. Louis to Chiang Mai. Popular non-direct route for this connection is Lambert-St Louis Airport - Chiang Mai Airport.

There is 1 airport near Chiang Mai: Chiang Mai (CNX)

Search flight deals

How far is Lambert-St Louis to Chiang Mai by plane?
The distance between Lambert-St Louis and Chiang Mai is about 8419.6 mi. By plane, this route typically takes 27h 54m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Chiang Mai Airport?
Prices for flights from Lambert-St Louis Airport to Chiang Mai Airport are refreshed on a daily basis.
How old do you have to be to fly from Lambert-St Louis Airport to Chiang Mai Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Chiang Mai Airport.
What documentation or ID do you need to fly to Chiang Mai Airport?
The travel and health documents required for your trip to Chiang Mai Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chiang Mai Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

How do I get Price Alerts for flights from St. Louis to Chiang Mai?
Confirm your travel details to search for the latest offers for flights from St. Louis to Chiang Mai. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from St. Louis to Chiang Mai with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Chiang Mai?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Chiang Mai. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Chiang Mai with flexible booking policies on momondo?

All flight searches from St. Louis to Chiang Mai on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Chiang Mai?

Once you have performed a search for St. Louis to Chiang Mai flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Chiang Mai right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to Chiang Mai flights. All you need is a valid email address and we will do the rest; it is that quick and easy.