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

Historically, on average around 5% 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 64 minutes.

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

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

According to our data, Etihad Airways have had the fewest delays on this route over the last 12 months, with about 4% of their flights experiencing any sort of delay.

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

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

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

As of October 2025, there are 42 flights per week flying from Chiang Mai to Ko Samui. 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?

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

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

As of October 2025, 6 flights take off from Chiang Mai and land in Ko Samui each day. The most common flight departure time for this route is 11:00, with 100% of daily flights taking off at midday.

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 are refreshed on a daily basis.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 travel and health documents required for your trip to Ko Samui 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 Ko Samui Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£120 Cheap Flights from Chiang Mai to Ko Samui in 2025/26

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12:10 - 17:00CNX-USM

4h 50m1 stop

08:50 - 10:40USM-CNX

1h 50mdirect

£193Bangkok Airways

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Fri, 13 Mar - Mon, 16 Mar

22:25 - 07:45CNX-USM

9h 20m1 stop

08:15 - 15:40USM-CNX

7h 25m1 stop

£217Multiple Airlines

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Thu, 13 Nov - Mon, 17 Nov

22:25 - 07:45CNX-USM

9h 20m1 stop

07:15 - 13:35USM-CNX

6h 20m1 stop

£219Multiple Airlines

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Tue, 25 Nov - Tue, 2 Dec

21:40 - 07:35CNX-USM

9h 55m1 stop

08:50 - 10:40USM-CNX

1h 50mdirect

£219Bangkok Airways

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Thu, 22 Jan - Sun, 25 Jan

21:40 - 07:10CNX-USM

9h 30m1 stop

08:50 - 10:40USM-CNX

1h 50mdirect

£226Bangkok Airways

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Sat, 24 Jan - Mon, 26 Jan

22:25 - 07:10CNX-USM

8h 45m1 stop

08:15 - 15:40USM-CNX

7h 25m1 stop

£235Multiple Airlines

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Thu, 27 Nov - Thu, 4 Dec

10:10 - 18:40CNX-USM

8h 30m1 stop

08:50 - 10:40USM-CNX

1h 50mdirect

£239Bangkok Airways

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Sat, 13 Dec - Sat, 20 Dec

10:10 - 17:40CNX-USM

7h 30m1 stop

08:50 - 10:40USM-CNX

1h 50mdirect

£241Bangkok Airways

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Sat, 13 Dec - Sat, 20 Dec

06:50 - 15:10CNX-USM

8h 20m2 stops

08:50 - 10:40USM-CNX

1h 50mdirect

£256Multiple Airlines

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Sat, 13 Dec - Sat, 20 Dec

06:50 - 15:10CNX-USM

8h 20m2 stops

08:50 - 10:40USM-CNX

1h 50mdirect

£257Multiple Airlines

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Sat, 13 Dec - Sat, 20 Dec

Bangkok Airways flights from Chiang Mai to Ko Samui

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

Bangkok Airways

13 Mar

CNX12:10Chiang Mai

4h 50m

1 stop

USM17:00Ko Samui

16 Mar

USM08:50Ko Samui

1h 50m

CNX10:40Chiang Mai

£193

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Bangkok Airways

22 Jan

CNX21:40Chiang Mai

9h 55m

1 stop

USM07:35Ko Samui

25 Jan

USM08:50Ko Samui

1h 50m

CNX10:40Chiang Mai

£219

Find similar

Bangkok Airways

24 Jan

CNX21:40Chiang Mai

9h 30m

1 stop

USM07:10Ko Samui

26 Jan

USM08:50Ko Samui

1h 50m

CNX10:40Chiang Mai

£226

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Fly from

Fly to

Route

Depart

Return

Price

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Fri 13/3

12:10-17:00

1 stop4h 50m

Ko Samui

Mon 16/3

08:50-10:40

Nonstop1h 50m

£193

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 13/11

22:25-07:45

1 stop9h 20m

Ko Samui

Mon 17/11

08:15-15:40

1 stop7h 25m

£217

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Tue 25/11

22:25-07:45

1 stop9h 20m

Ko Samui

Tue 2/12

07:15-13:35

1 stop6h 20m

£219

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 22/1

21:40-07:35

1 stop9h 55m

Ko Samui

Sun 25/1

08:50-10:40

Nonstop1h 50m

£219

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Sat 24/1

21:40-07:10

1 stop9h 30m

Ko Samui

Mon 26/1

08:50-10:40

Nonstop1h 50m

£226

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 27/11

22:25-07:10

1 stop8h 45m

Ko Samui

Thu 4/12

08:15-15:40

1 stop7h 25m

£235

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Sat 13/12

10:10-18:40

1 stop8h 30m

Ko Samui

Sat 20/12

08:50-10:40

Nonstop1h 50m

£239

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Sat 13/12

10:10-17:40

1 stop7h 30m

Ko Samui

Sat 20/12

08:50-10:40

Nonstop1h 50m

£241

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Sat 13/12

06:50-15:10

2 stops8h 20m

Ko Samui

Sat 20/12

08:50-10:40

Nonstop1h 50m

£256

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Sat 13/12

06:50-15:10

2 stops8h 20m

Ko Samui

Sat 20/12

08:50-10:40

Nonstop1h 50m

£257

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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

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What is the cheapest month to fly to Ko Samui?

The cheapest month to fly to Ko Samui from Chiang Mai is in September. Flight prices, which tend to average around £216, are often lower during this time because this is during the off-season. If you don’t want to visit Ko Samui in September, then you should wait until May to fly from Chiang Mai, when ticket prices are also cheap, with an average price of £228.

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

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

How far in advance should I book a flight to Ko Samui?

You are more likely to see cheaper flights to Ko Samui from Chiang Mai when booking weeks ahead of your departure date. In general, you can expect to find flights to Ko Samui for around £287 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ko Samui from Chiang Mai for as low as £121 on momondo.

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

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

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

You could potentially save up to 1% 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 2025, prices for Chiang Mai to Ko Samui flights are approximately 7% 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 return 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

Fastest flight time	1h 45m
Direct flights	Every day
Airports in Ko Samui	1 airport

The fastest flight from Chiang Mai to Ko Samui takes 1h 45m

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

There is 1 airport near Ko Samui: Ko Samui (USM)

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How far is Chiang Mai to Ko Samui by plane?
A flight from Chiang Mai to Ko Samui will travel around 643.7 mi. In terms of flight time, this usually takes a little over 1h 45m.
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 are refreshed on a daily basis.
How old do you have to be to fly from Chiang Mai Airport to Ko Samui Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 travel and health documents required for your trip to Ko Samui 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 Ko Samui Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Chiang Mai to Ko Samui?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Chiang Mai to Ko Samui is Airbus A319 (93.75% of total bookings). The next most popular plane model is Airbus A320-100/200 (6.25%).

Ko Pha Ngan

Ko Tao

Khanom

Why use momondo?

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

Finding the right flight to Ko Samui from Chiang Mai 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 Ko Samui quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Ko Samui from Chiang Mai with this policy.

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

Once you have performed a search for Chiang Mai to Ko Samui 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 Chiang Mai to Ko Samui right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Ko Samui, momondo offers a useful price alert feature which will track prices for flights to Ko Samui from Chiang Mai and alert you when they change.

An easier way to manage your Ko Samui trip

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Cheap flights from Chiang Mai to Ko Samui from £120

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 19/4. 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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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

What is the cheapest month to fly to Ko Samui?

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

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

How far in advance should I book a flight to Ko Samui?

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

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

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

You could potentially save up to 1% 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 2025, prices for Chiang Mai to Ko Samui flights are approximately 7% more expensive when compared to flights at the same time last year.

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 often are flights from Chiang Mai to Ko Samui delayed?

Historically, on average around 5% 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 64 minutes.

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

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing 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?

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

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

According to our data, Etihad Airways have had the fewest delays on this route over the last 12 months, with about 4% of their flights experiencing any sort of delay.

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

As of October 2025, 6 flights take off from Chiang Mai and land in Ko Samui each day. The most common flight departure time for this route is 11:00, with 100% of daily flights taking off at midday.

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

As of October 2025, there are 42 flights per week flying from Chiang Mai to Ko Samui. 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 Chiang Mai to Ko Samui

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

Fastest flight time

Direct flights

Airports in Ko Samui

How far is Chiang Mai to Ko Samui by plane?

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

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

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

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

Travelling to a place near Ko Samui?

Why use momondo?

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

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

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

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

An easier way to manage your Ko Samui trip

We make it super easy to schedule, organise 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