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

Historically, on average around 2% 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 96 minutes.

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 December 2025. The most popular departure time for this route is 8:00AM, with 100% of flights per day taking off at noon.

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

As of December 2025, 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.

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. Monday has historically seen more delays on average compared to the rest of the week.

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

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 2% of their flights experiencing any sort of delay.

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.

$108 Cheap Flights from Ko Samui to Chiang Mai in 2025/26

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8:50 am - 10:40 am

USM

CNX

1h 50mnonstop

9:40 pm - 7:10 am

CNX

USM

9h 30m1 stop

$298Bangkok Airways

Fri, Feb 13 - Thu, Feb 19

7:00 am - 9:55 pm

USM

CNX

14h 55m1 stop

10:25 pm - 8:05 am

CNX

USM

9h 40m1 stop

$345Multiple Airlines

Mon, Dec 29 - Sat, Jan 10

8:50 am - 10:40 am

USM

CNX

1h 50mnonstop

9:40 pm - 8:05 am

CNX

USM

10h 25m1 stop

$351Bangkok Airways

Sun, Feb 1 - Sun, Feb 8

7:00 am - 9:55 pm

USM

CNX

14h 55m1 stop

10:50 pm - 7:35 am

CNX

USM

8h 45m1 stop

$356Multiple Airlines

Mon, Dec 29 - Thu, Jan 8

8:50 am - 10:40 am

USM

CNX

1h 50mnonstop

9:40 pm - 7:30 am

CNX

USM

9h 50m1 stop

$365Bangkok Airways

Fri, Jan 30 - Fri, Feb 6

8:50 am - 10:40 am

USM

CNX

1h 50mnonstop

10:10 am - 7:45 am

CNX

USM

21h 35m1 stop

$376Bangkok Airways

Sat, Feb 14 - Sat, Feb 21

7:00 am - 2:25 pm

USM

CNX

7h 25m1 stop

6:35 am - 11:35 am

CNX

USM

5h 00m1 stop

$387Multiple Airlines

Mon, Dec 29 - Fri, Jan 9

7:00 pm - 10:15 am

USM

CNX

15h 15m1 stop

2:10 pm - 8:30 pm

CNX

USM

6h 20m1 stop

$388Multiple Airlines

Fri, Jan 30 - Fri, Feb 6

7:00 am - 2:25 pm

USM

CNX

7h 25m1 stop

2:30 pm - 8:25 pm

CNX

USM

5h 55m1 stop

$393Multiple Airlines

Mon, Dec 29 - Wed, Jan 7

8:20 pm - 9:25 am

USM

CNX

13h 05m1 stop

9:40 pm - 7:10 am

CNX

USM

9h 30m1 stop

$408Bangkok Airways

Sun, Feb 15 - Thu, Feb 19

Bangkok Airways flights from Ko Samui to Chiang Mai

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

Bangkok Airways

Feb 13

USM8:50 amKo Samui

1h 50m

CNX10:40 amChiang Mai

Feb 19

CNX9:40 pmChiang Mai

9h 30m

1 stop

USM7:10 amKo Samui

$298

Find similar

Bangkok Airways

Jan 30

USM8:50 amKo Samui

1h 50m

CNX10:40 amChiang Mai

Feb 6

CNX9:40 pmChiang Mai

9h 50m

1 stop

USM7:30 amKo Samui

$365

Find similar

Bangkok Airways

Feb 14

USM8:50 amKo Samui

1h 50m

CNX10:40 amChiang Mai

Feb 21

CNX10:10 amChiang Mai

21h 35m

1 stop

USM7:45 amKo Samui

$376

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Fri 2/13

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Thu 2/19

9:40 pm-7:10 am

1 stop9h 30m

$298

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Mon 12/29

7:00 am-9:55 pm

1 stop14h 55m

Chiang Mai

Sat 1/10

10:25 pm-8:05 am

1 stop9h 40m

$345

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sun 2/1

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Sun 2/8

9:40 pm-8:05 am

1 stop10h 25m

$351

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Mon 12/29

7:00 am-9:55 pm

1 stop14h 55m

Chiang Mai

Thu 1/8

10:50 pm-7:35 am

1 stop8h 45m

$356

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Fri 1/30

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Fri 2/6

9:40 pm-7:30 am

1 stop9h 50m

$365

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sat 2/14

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Sat 2/21

10:10 am-7:45 am

1 stop21h 35m

$376

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Mon 12/29

7:00 am-2:25 pm

1 stop7h 25m

Chiang Mai

Fri 1/9

6:35 am-11:35 am

1 stop5h 00m

$387

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Fri 1/30

7:00 pm-10:15 am

1 stop15h 15m

Chiang Mai

Fri 2/6

2:10 pm-8:30 pm

1 stop6h 20m

$388

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Mon 12/29

7:00 am-2:25 pm

1 stop7h 25m

Chiang Mai

Wed 1/7

2:30 pm-8:25 pm

1 stop5h 55m

$393

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sun 2/15

8:20 pm-9:25 am

1 stop13h 05m

Chiang Mai

Thu 2/19

9:40 pm-7:10 am

1 stop9h 30m

$408

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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

Prices

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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 December 2025, prices for Ko Samui to Chiang Mai flights are approximately 12% 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	$108
Fastest flight time	4h 20m
Direct flights	Mon, Tue, Wed, Thu, Fri and Sun
Airports in Chiang Mai	1 airport

The best one-way flight to Chiang Mai from Ko Samui in the past 72 hours is $108. The best round-trip flight deal from Ko Samui to Chiang Mai found on momondo in the last 72 hours is $375.

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

Direct flights go from Ko Samui to Chiang Mai on Monday, Tuesday, Wednesday, Thursday, Friday and Sunday. The only airline offering direct flights is Bangkok Airways.

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

Search flight deals

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 $108

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 3/11. 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 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 December 2025, prices for Ko Samui to Chiang Mai flights are approximately 12% more expensive when compared to flights at the same time last year.

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 often are flights from Ko Samui to Chiang Mai delayed?

Historically, on average around 2% 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 96 minutes.

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.

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. Monday has historically seen more delays on average compared to the rest of the week.

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 2% of their flights experiencing any sort of delay.

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 December 2025. The most popular departure time for this route is 8:00AM, with 100% of flights per day taking off at noon.

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

As of December 2025, 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.

When to book flights from Ko Samui to Chiang Mai

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

Fastest flight time

Direct flights

Airports in Chiang Mai

How far is Ko Samui to Chiang Mai by plane?

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

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

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

What is the most popular plane model from Ko Samui to Chiang Mai?

Why use momondo?

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

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

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

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

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

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Thailand

Airports servicing Thailand