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

Historically, on average around 6% of flights between Chiang Mai and Ko Samui have experienced a delay on any given week. The average delay length over the past 12 months has been 115 minutes.

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

42 flights are operational weekly from Chiang Mai to Ko Samui as of October 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

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

Sunday is statistically the day of the week that experiences the fewest delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

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

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

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

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

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

6 flights are operational daily from Chiang Mai to Ko Samui as of October 2026. The most popular departure time for this route is 11:00a.m., with 100% of flights per day taking off at noon.

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

According to our data, Bangkok Airways has had the least delays on this route over the last 12 months, with about 6% of their flights experiencing any sort of delay.

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

Prices for flights from Chiang Mai Airport to Ko Samui Airport were last updated today.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chiang Mai Airport to Ko Samui Airport.

What documentation or ID do you need to fly to Ko Samui Airport?

The necessary travel and health documents for your Ko Samui Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

C$ 221 Cheap Flights from Chiang Mai to Ko Samui in 2026/27

Find the cheapest flights from Chiang Mai to Ko Samui

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:35 p.m. - 6:30 p.m.CNX Chiang Mai-USM Ko Samui

3h 55m1 stop Bangkok Suvarnabhumi

8:55 a.m. - 10:40 a.m.USM Ko Samui-CNX Chiang Mai

1h 45mdirect

C$ 327Bangkok Airways

Fri, 23 Apr - Thu, 6 May

12:10 p.m. - 8:25 p.m.CNX Chiang Mai-USM Ko Samui

8h 15m1 stop Bangkok Suvarnabhumi

8:50 a.m. - 10:40 a.m.USM Ko Samui-CNX Chiang Mai

1h 50mdirect

C$ 400Bangkok Airways

Tue, 9 Mar - Tue, 16 Mar

8:00 p.m. - 7:10 a.m.CNX Chiang Mai-USM Ko Samui

11h 10m1 stop Bangkok Suvarnabhumi

8:55 a.m. - 10:40 a.m.USM Ko Samui-CNX Chiang Mai

1h 45mdirect

C$ 425Bangkok Airways

Tue, 20 Apr - Tue, 4 May

7:45 p.m. - 7:10 a.m.CNX Chiang Mai-USM Ko Samui

11h 25m1 stop Bangkok Suvarnabhumi

8:50 a.m. - 10:40 a.m.USM Ko Samui-CNX Chiang Mai

1h 50mdirect

C$ 427Bangkok Airways

Fri, 26 Feb - Mon, 15 Mar

8:00 p.m. - 7:10 a.m.CNX Chiang Mai-USM Ko Samui

11h 10m1 stop Bangkok Suvarnabhumi

7:50 a.m. - 1:45 p.m.USM Ko Samui-CNX Chiang Mai

5h 55m1 stop Bangkok Suvarnabhumi

C$ 453Bangkok Airways

Tue, 20 Apr - Tue, 4 May

7:45 p.m. - 7:10 a.m.CNX Chiang Mai-USM Ko Samui

11h 25m1 stop Bangkok Suvarnabhumi

7:00 a.m. - 11:20 a.m.USM Ko Samui-CNX Chiang Mai

4h 20m1 stop Bangkok Suvarnabhumi

C$ 480Bangkok Airways

Fri, 26 Feb - Fri, 12 Mar

7:45 p.m. - 7:10 a.m.CNX Chiang Mai-USM Ko Samui

11h 25m1 stop Bangkok Suvarnabhumi

8:50 a.m. - 10:40 a.m.USM Ko Samui-CNX Chiang Mai

1h 50mdirect

C$ 494Bangkok Airways

Sat, 13 Feb - Mon, 15 Feb

10:10 a.m. - 4:15 p.m.CNX Chiang Mai-USM Ko Samui

6h 05m1 stop Bangkok Suvarnabhumi

8:50 a.m. - 10:40 a.m.USM Ko Samui-CNX Chiang Mai

1h 50mdirect

C$ 516Bangkok Airways

Wed, 13 Jan - Wed, 27 Jan

10:10 a.m. - 4:15 p.m.CNX Chiang Mai-USM Ko Samui

6h 05m1 stop Bangkok Suvarnabhumi

8:50 a.m. - 10:40 a.m.USM Ko Samui-CNX Chiang Mai

1h 50mdirect

C$ 517Bangkok Airways

Wed, 13 Jan - Wed, 27 Jan

10:10 a.m. - 4:15 p.m.CNX Chiang Mai-USM Ko Samui

6h 05m1 stop Bangkok Suvarnabhumi

8:50 a.m. - 10:40 a.m.USM Ko Samui-CNX Chiang Mai

1h 50mdirect

C$ 519Bangkok Airways

Wed, 13 Jan - Wed, 27 Jan

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Bangkok Airways flights from Chiang Mai to Ko Samui

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

Bangkok Airways

23 Apr

CNX2:35 p.m.Chiang Mai

3h 55m

1 stop

USM6:30 p.m.Ko Samui

6 May

USM8:55 a.m.Ko Samui

1h 45m

CNX10:40 a.m.Chiang Mai

C$ 327

Bangkok Airways

6 Nov

CNX10:10 a.m.Chiang Mai

8h 00m

1 stop

USM6:10 p.m.Ko Samui

8 Nov

USM8:50 a.m.Ko Samui

1h 50m

CNX10:40 a.m.Chiang Mai

C$ 369

Bangkok Airways

9 Mar

CNX12:10 p.m.Chiang Mai

8h 15m

1 stop

USM8:25 p.m.Ko Samui

16 Mar

USM8:50 a.m.Ko Samui

1h 50m

CNX10:40 a.m.Chiang Mai

C$ 400

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Fri 23/4

2:35 p.m.-6:30 p.m.

1 stop3h 55m

Ko Samui

Thu 6/5

8:55 a.m.-10:40 a.m.

Nonstop1h 45m

C$ 327

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Tue 9/3

12:10 p.m.-8:25 p.m.

1 stop8h 15m

Ko Samui

Tue 16/3

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 400

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Tue 20/4

8:00 p.m.-7:10 a.m.

1 stop11h 10m

Ko Samui

Tue 4/5

8:55 a.m.-10:40 a.m.

Nonstop1h 45m

C$ 425

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Fri 26/2

7:45 p.m.-7:10 a.m.

1 stop11h 25m

Ko Samui

Mon 15/3

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 427

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Tue 20/4

8:00 p.m.-7:10 a.m.

1 stop11h 10m

Ko Samui

Tue 4/5

7:50 a.m.-1:45 p.m.

1 stop5h 55m

C$ 453

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Fri 26/2

7:45 p.m.-7:10 a.m.

1 stop11h 25m

Ko Samui

Fri 12/3

7:00 a.m.-11:20 a.m.

1 stop4h 20m

C$ 480

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Sat 13/2

7:45 p.m.-7:10 a.m.

1 stop11h 25m

Ko Samui

Mon 15/2

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 494

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Wed 13/1

10:10 a.m.-4:15 p.m.

1 stop6h 05m

Ko Samui

Wed 27/1

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 516

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Wed 13/1

10:10 a.m.-4:15 p.m.

1 stop6h 05m

Ko Samui

Wed 27/1

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 517

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Wed 13/1

10:10 a.m.-4:15 p.m.

1 stop6h 05m

Ko Samui

Wed 27/1

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 519

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 Chiang Mai to Ko Samui

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

Airlines

Delays

Other information

What is the cheapest month to fly to Ko Samui?

The month of September is, on average, the cheapest month to fly to Ko Samui from Chiang Mai, with most prices found around C$ 241. If you aren’t able to travel to Ko Samui during the month of September, then flying in June is also cheap. Prices for this month can be found on momondo for an average of C$ 351.

Can stopping save me money on Chiang Mai to Ko Samui flights?

You could potentially save up to 26% on your flight if you consider stops on a Chiang Mai to Ko Samui flight.

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

As of October 2026, prices for Chiang Mai to Ko Samui flights are approximately 3% more expensive when compared to flights at the same time last year.

When to book flights from Chiang Mai to Ko Samui

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

Estimated round-trip price

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

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

Best price found	C$ 221
Fastest flight time	6h 00m
Direct flights	Every day
Airports in Ko Samui	1 airport

The best one-way flight to Ko Samui from Chiang Mai in the past 72 hours is C$ 221. The best round-trip flight deal from Chiang Mai to Ko Samui found on momondo in the last 72 hours is C$ 327.

The fastest flight from Chiang Mai to Ko Samui takes 6h 00m

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

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

Search flight deals

Frequently asked questions about flying from Chiang Mai to Ko Samui

How far is Chiang Mai to Ko Samui by plane?
A flight from Chiang Mai to Ko Samui will travel around 1035.9 km. A reasonable flight in good conditions will take 6h 00m.
When did momondo last update prices for flights from Chiang Mai Airport to Ko Samui Airport?
Prices for flights from Chiang Mai Airport to Ko Samui Airport were last updated today.
How old do you have to be to fly from Chiang Mai Airport to Ko Samui Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chiang Mai Airport to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The necessary travel and health documents for your Ko Samui Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Chiang Mai to Ko Samui?
momondo data reveals that the most frequently booked plane model on the route from Chiang Mai to Ko Samui is Airbus A319, representing 100.00% of all bookings.

Ko Tao

Ko Pha Ngan

Khanom

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ko Samui from Chiang Mai.

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

Yes. momondo allows you to filter the results for Chiang Mai to Ko Samui flights to just show those with flexible booking policies.

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

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 Ko Samui from Chiang Mai.

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

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

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Cheap flights from Chiang Mai to Ko Samui from C$ 221

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chiang Mai to Ko Samui departing on 11/12. 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 Chiang Mai to Ko Samui

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

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

What is the cheapest month to fly to Ko Samui?

Can stopping save me money on Chiang Mai to Ko Samui flights?

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

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

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

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

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

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

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

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

When to book flights from Chiang Mai to Ko Samui

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

Best price found

Fastest flight time

Direct flights

Airports in Ko Samui

Frequently asked questions about flying from Chiang Mai to Ko Samui

Travelling to a place near Ko Samui?

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An easier way to manage your Ko Samui trip

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Cabin classes currently available on flights to Ko Samui

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

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