What is the cheapest airline that flies from Ko Samui to Chiang Mai?

Bangkok Airways is the most popular carrier operating from Ko Samui to Chiang Mai

How many flights depart from Ko Samui to Chiang Mai on average per week?

As of September 2026, there are 42 flights per week flying from Ko Samui to Chiang Mai. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

Which airline has the best punctuality record on Ko Samui to Chiang Mai flights?

According to our data, Bangkok Airways have had the least number of delays on this route over the last 12 months; with about 3% of their flights experiencing any sort of delay.

How often are flights from Ko Samui to Chiang Mai delayed?

Historically, on average around 3% of flights between Ko Samui and Chiang Mai have experienced a delay on any given week. The average delay length over the past 12 months has been 109 minutes.

What day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

What is the most punctual flight time for Ko Samui to Chiang Mai flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

How many flights depart from Ko Samui to Chiang Mai on average per day?

6 flights are operational daily from Ko Samui to Chiang Mai as of September 2026. The most popular departure time for this route is 8:00AM, with 100% of flights per day taking off at noon.

When did momondo last update prices for flights from Ko Samui Airport to Chiang Mai Airport?

Prices for flights from Ko Samui Airport to Chiang Mai Airport are updated daily.

How old do you have to be to fly from Ko Samui 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 Ko Samui Airport to Chiang Mai Airport.

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

The travel and health documents you'll need for your trip to Chiang Mai Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chiang Mai Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$83 Cheap Flights from Ko Samui to Chiang Mai in 2026/27

Find the cheapest flights from Ko Samui to Chiang Mai

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:50 am - 10:40 amUSM Ko Samui-CNX Chiang Mai

1h 50mnonstop

6:30 am - 2:45 pmCNX Chiang Mai-USM Ko Samui

8h 15m1 stop Bangkok Don Mueang Intl

$224Multiple Airlines

Tue, Nov 10 - Tue, Nov 17

8:50 am - 10:40 amUSM Ko Samui-CNX Chiang Mai

1h 50mnonstop

11:30 am - 1:15 pmCNX Chiang Mai-USM Ko Samui

1h 45mnonstop

$234Bangkok Airways

Wed, Nov 11 - Wed, Nov 18

8:50 am - 10:40 amUSM Ko Samui-CNX Chiang Mai

1h 50mnonstop

6:30 am - 8:30 pmCNX Chiang Mai-USM Ko Samui

14h 00m1 stop Bangkok Don Mueang Intl

$241Multiple Airlines

Wed, Nov 11 - Wed, Nov 18

8:50 am - 10:40 amUSM Ko Samui-CNX Chiang Mai

1h 50mnonstop

7:05 am - 3:20 pmCNX Chiang Mai-USM Ko Samui

8h 15m1 stop Bangkok Don Mueang Intl

$243Multiple Airlines

Thu, Oct 29 - Sun, Nov 1

8:50 am - 10:40 amUSM Ko Samui-CNX Chiang Mai

1h 50mnonstop

6:30 am - 10:25 amCNX Chiang Mai-USM Ko Samui

3h 55m1 stop Bangkok Don Mueang Intl

$245Multiple Airlines

Tue, Oct 27 - Tue, Nov 3

8:50 am - 10:40 amUSM Ko Samui-CNX Chiang Mai

1h 50mnonstop

7:45 pm - 7:10 amCNX Chiang Mai-USM Ko Samui

11h 25m1 stop Bangkok Suvarnabhumi

$248Bangkok Airways

Tue, Oct 27 - Tue, Nov 3

11:00 am - 10:50 pmUSM Ko Samui-CNX Chiang Mai

11h 50m1 stop Bangkok Don Mueang Intl

2:20 pm - 8:30 pmCNX Chiang Mai-USM Ko Samui

6h 10m1 stop Bangkok Don Mueang Intl

$257Multiple Airlines

Wed, Nov 11 - Wed, Nov 18

8:50 am - 10:40 amUSM Ko Samui-CNX Chiang Mai

1h 50mnonstop

9:00 am - 2:45 pmCNX Chiang Mai-USM Ko Samui

5h 45m1 stop Bangkok Don Mueang Intl

$264Multiple Airlines

Sun, Oct 25 - Sun, Nov 1

6:45 am - 5:15 pmUSM Ko Samui-CNX Chiang Mai

10h 30m1 stop Bangkok Don Mueang Intl

6:30 am - 2:45 pmCNX Chiang Mai-USM Ko Samui

8h 15m1 stop Bangkok Don Mueang Intl

$272Multiple Airlines

Tue, Nov 10 - Tue, Nov 17

7:00 am - 8:20 pmUSM Ko Samui-CNX Chiang Mai

13h 20m1 stop Bangkok Suvarnabhumi

10:10 pm - 10:25 amCNX Chiang Mai-USM Ko Samui

12h 15m1 stop Bangkok Don Mueang Intl

$275Multiple Airlines

Thu, Oct 29 - Sun, Nov 1

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Bangkok Airways flights from Ko Samui to Chiang Mai

Our best Bangkok Airways deals on Ko Samui to Chiang Mai flight tickets

Bangkok Airways

Nov 11

USM8:50 amKo Samui

1h 50m

CNX10:40 amChiang Mai

Nov 18

CNX11:30 amChiang Mai

1h 45m

USM1:15 pmKo Samui

$234

Bangkok Airways

Oct 27

USM8:50 amKo Samui

1h 50m

CNX10:40 amChiang Mai

Nov 3

CNX7:45 pmChiang Mai

11h 25m

1 stop

USM7:10 amKo Samui

$248

Bangkok Airways

Nov 13

USM8:50 amKo Samui

1h 50m

CNX10:40 amChiang Mai

Nov 20

CNX7:45 pmChiang Mai

12h 25m

1 stop

USM8:10 amKo Samui

$279

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Tue 11/10

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Tue 11/17

6:30 am-2:45 pm

1 stop8h 15m

$224

Quickest round-trip

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Wed 11/11

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Wed 11/18

11:30 am-1:15 pm

Nonstop1h 45m

$234

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Wed 11/11

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Wed 11/18

6:30 am-8:30 pm

1 stop14h 00m

$241

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Thu 10/29

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Sun 11/1

7:05 am-3:20 pm

1 stop8h 15m

$243

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Tue 10/27

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Tue 11/3

6:30 am-10:25 am

1 stop3h 55m

$245

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Tue 10/27

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Tue 11/3

7:45 pm-7:10 am

1 stop11h 25m

$248

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Wed 11/11

11:00 am-10:50 pm

1 stop11h 50m

Chiang Mai

Wed 11/18

2:20 pm-8:30 pm

1 stop6h 10m

$257

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Sun 10/25

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Sun 11/1

9:00 am-2:45 pm

1 stop5h 45m

$264

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Tue 11/10

6:45 am-5:15 pm

1 stop10h 30m

Chiang Mai

Tue 11/17

6:30 am-2:45 pm

1 stop8h 15m

$272

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Thu 10/29

7:00 am-8:20 pm

1 stop13h 20m

Chiang Mai

Sun 11/1

10:10 pm-10:25 am

1 stop12h 15m

$275

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ko Samui to Chiang Mai

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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Delays

Other information

What is the cheapest month to fly to Chiang Mai?

If you don’t want to visit Chiang Mai in June, then you should wait until April to fly from Ko Samui, when ticket prices are also cheap, with an average price of $188.

What is the cheapest Ko Samui to Chiang Mai flight route?

Fly from Ko Samui to Chiang Mai for the best Ko Samui - Chiang Mai flight prices

What cabin class options are available on Ko Samui to Chiang Mai flights?

There is only 1 cabin class available to choose from on Ko Samui to Chiang Mai flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Ko Samui to Chiang Mai flight prices changed over time?

As of September 2026, prices for Ko Samui to Chiang Mai flights are approximately 13% more expensive when compared to flights at the same time last year.

When to book flights from Ko Samui to Chiang Mai

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

Estimated round-trip price

Cheap Ko Samui to Chiang Mai (USM to CNX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ko Samui to Chiang Mai

Best Price Found	$83
Fastest flight time	4h 20m
Direct flights	Every day
Airports in Chiang Mai	1 airport

The best one-way flight to Chiang Mai from Ko Samui in the past 72 hours is $83. The best round-trip flight deal from Ko Samui to Chiang Mai found on momondo in the last 72 hours is $224.

The fastest flight from Ko Samui to Chiang Mai takes 4h 20m

Direct flights go from Ko Samui to Chiang Mai every day.

There is 1 airport in Chiang Mai. From Ko Samui there are direct flights to Chiang Mai (CNX).

Search flight deals

Frequently asked questions about flying from Ko Samui to Chiang Mai

How far is Ko Samui to Chiang Mai by plane?
There are 643.7 mi between Ko Samui and Chiang Mai. Typically, this will take 4h 20m by plane in normal conditions.
When did momondo last update prices for flights from Ko Samui Airport to Chiang Mai Airport?
Prices for flights from Ko Samui Airport to Chiang Mai Airport are updated daily.
How old do you have to be to fly from Ko Samui 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 Ko Samui Airport to Chiang Mai Airport.
What documentation or ID do you need to fly to Chiang Mai Airport?
The travel and health documents you'll need for your trip to Chiang Mai Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chiang Mai Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ko Samui to Chiang Mai?
Based on momondo bookings for flights between Ko Samui and Chiang Mai, the leading plane model is Airbus A319, making up 100.00% of the total bookings.

Why use momondo?

Why should I use momondo to find a flight deal from Ko Samui to Chiang Mai?

Finding the right flight to Chiang Mai from Ko Samui is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chiang Mai quick and easy, saving you time and money.

Can I find flights from Ko Samui to Chiang Mai with flexible booking policies on momondo?

Yes. All flights to Chiang Mai from Ko Samui on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ko Samui to Chiang Mai?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chiang Mai from Ko Samui.

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

If you are not ready to book a flight from Ko Samui to Chiang Mai now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chiang Mai and let you know when they change.

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Cheap flights from Ko Samui to Chiang Mai from $83

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ko Samui to Chiang Mai departing on 3/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Bangkok Airways flights from Ko Samui to Chiang Mai

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How to get the cheapest flight ticket from Ko Samui to Chiang Mai

What is the cheapest month to fly to Chiang Mai?

What is the cheapest Ko Samui to Chiang Mai flight route?

What cabin class options are available on Ko Samui to Chiang Mai flights?

How have Ko Samui to Chiang Mai flight prices changed over time?

What is the cheapest airline that flies from Ko Samui to Chiang Mai?

How often are flights from Ko Samui to Chiang Mai delayed?

What is the most punctual flight time for Ko Samui to Chiang Mai flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Ko Samui to Chiang Mai flights?

How many flights depart from Ko Samui to Chiang Mai on average per day?

How many flights depart from Ko Samui to Chiang Mai on average per week?

When to book flights from Ko Samui to Chiang Mai

Cheap Ko Samui to Chiang Mai (USM to CNX) flight deals and tips

Best Price Found

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Direct flights

Airports in Chiang Mai

Frequently asked questions about flying from Ko Samui to Chiang Mai

Why use momondo?

An easier way to manage your Chiang Mai trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

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List of cabin classes available on flights landing in Chiang Mai. Availability may vary depending on flight origin and airline.

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