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

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 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?

Sunday 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.

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

As of March 2026, 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.

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 March 2026. The most popular departure time for this route is 11:00AM, with 100% of flights per day taking off at noon.

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

Historically, on average around 3% 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 78 minutes.

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

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 updated daily.

How many operators does momondo search for flights from Chiang Mai Airport to Ko Samui Airport?

As of March 2026, there is 1 operator available to choose from 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?

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 Chiang Mai Airport to Ko Samui Airport.

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

The required travel and health documents for your Ko Samui Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ko Samui Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$185 Cheap Flights from Chiang Mai to Ko Samui in 2026

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Find the cheapest flights from Chiang Mai to Ko Samui

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One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

2:35 pm - 9:35 pm

CNX

USM

7h 00m

1 stop

8:55 am - 10:40 am

USM

CNX

1h 45mnonstop

$185Bangkok Airways

Sun, Jun 21 - Fri, Jun 26

2:35 pm - 9:35 pm

CNX

USM

7h 00m

1 stop

6:00 am - 11:15 am

USM

CNX

5h 15m

1 stop

$200Bangkok Airways

Sun, Jun 21 - Fri, Jun 26

11:30 pm - 7:10 am

CNX

USM

7h 40m

1 stop

8:55 am - 10:40 am

USM

CNX

1h 45mnonstop

$213Multiple Airlines

Thu, May 7 - Mon, May 11

11:55 am - 8:30 pm

CNX

USM

8h 35m

1 stop

6:00 am - 11:15 am

USM

CNX

5h 15m

1 stop

$215Bangkok Airways

Thu, May 7 - Mon, May 11

10:05 pm - 7:10 am

CNX

USM

9h 05m

1 stop

7:50 am - 12:30 pm

USM

CNX

4h 40m

1 stop

$225Multiple Airlines

Thu, Apr 23 - Tue, Apr 28

10:05 pm - 7:10 am

CNX

USM

9h 05m

1 stop

8:55 am - 10:40 am

USM

CNX

1h 45mnonstop

$228Multiple Airlines

Wed, Apr 22 - Wed, Apr 29

8:00 pm - 7:10 am

CNX

USM

11h 10m

1 stop

8:55 am - 10:40 am

USM

CNX

1h 45mnonstop

$230Bangkok Airways

Thu, Apr 23 - Tue, Apr 28

7:45 pm - 7:10 am

CNX

USM

11h 25m

1 stop

8:55 am - 10:40 am

USM

CNX

1h 45mnonstop

$236Multiple Airlines

Sat, Apr 25 - Tue, Apr 28

11:55 am - 8:25 pm

CNX

USM

8h 30m

2 stops

8:55 am - 10:40 am

USM

CNX

1h 45mnonstop

$264Bangkok Airways

Thu, Jun 11 - Sat, Jun 13

10:05 pm - 7:10 am

CNX

USM

9h 05m

1 stop

11:15 am - 8:40 pm

USM

CNX

9h 25m

1 stop

$276Multiple Airlines

Wed, Apr 22 - Wed, Apr 29

Bangkok Airways flights from Chiang Mai to Ko Samui

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

Bangkok Airways

Jun 21

CNX2:35 pmChiang Mai

7h 00m

1 stop

USM9:35 pmKo Samui

Jun 26

USM8:55 amKo Samui

1h 45m

CNX10:40 amChiang Mai

$185

Bangkok Airways

Jun 21

CNX2:35 pmChiang Mai

7h 00m

1 stop

USM9:35 pmKo Samui

Jun 26

USM6:00 amKo Samui

5h 15m

1 stop

CNX11:15 amChiang Mai

$200

Bangkok Airways

May 7

CNX11:55 amChiang Mai

8h 35m

1 stop

USM8:30 pmKo Samui

May 11

USM6:00 amKo Samui

5h 15m

1 stop

CNX11:15 amChiang Mai

$215

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Sun 6/21

2:35 pm-9:35 pm

1 stop7h 00m

Ko Samui

Fri 6/26

8:55 am-10:40 am

Nonstop1h 45m

$185

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Sun 6/21

2:35 pm-9:35 pm

1 stop7h 00m

Ko Samui

Fri 6/26

6:00 am-11:15 am

1 stop5h 15m

$200

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 5/7

11:30 pm-7:10 am

1 stop7h 40m

Ko Samui

Mon 5/11

8:55 am-10:40 am

Nonstop1h 45m

$213

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 5/7

11:55 am-8:30 pm

1 stop8h 35m

Ko Samui

Mon 5/11

6:00 am-11:15 am

1 stop5h 15m

$215

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 4/23

10:05 pm-7:10 am

1 stop9h 05m

Ko Samui

Tue 4/28

7:50 am-12:30 pm

1 stop4h 40m

$225

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Wed 4/22

10:05 pm-7:10 am

1 stop9h 05m

Ko Samui

Wed 4/29

8:55 am-10:40 am

Nonstop1h 45m

$228

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 4/23

8:00 pm-7:10 am

1 stop11h 10m

Ko Samui

Tue 4/28

8:55 am-10:40 am

Nonstop1h 45m

$230

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Sat 4/25

7:45 pm-7:10 am

1 stop11h 25m

Ko Samui

Tue 4/28

8:55 am-10:40 am

Nonstop1h 45m

$236

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 6/11

11:55 am-8:25 pm

2 stops8h 30m

Ko Samui

Sat 6/13

8:55 am-10:40 am

Nonstop1h 45m

$264

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Wed 4/22

10:05 pm-7:10 am

1 stop9h 05m

Ko Samui

Wed 4/29

11:15 am-8:40 pm

1 stop9h 25m

$276

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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

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Ko Samui?

In general, June is the cheapest month to fly from Chiang Mai to Ko Samui. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $278. If you don’t want to visit Ko Samui in June, then you should wait until September to fly from Chiang Mai, when ticket prices are also cheap, with an average price of $284.

What is the cheapest day to depart on your flight to Ko Samui?

Our data shows that Friday is the least expensive day to fly to Ko Samui. Tickets to fly out on this day can be as low as $371. Flights from Chiang Mai to Ko Samui on a Thursday will generally be more expensive and average around $469. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

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 19% 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 March 2026, prices for Chiang Mai to Ko Samui flights are approximately 9% 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	$287
Fastest flight time	19h 30m
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 $287. The best round-trip flight deal from Chiang Mai to Ko Samui found on momondo in the last 72 hours is $394.

The fastest flight from Chiang Mai to Ko Samui takes 19h 30m

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).

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How far is Chiang Mai to Ko Samui by plane?
The distance between Chiang Mai and Ko Samui is about 643.7 mi. In terms of flight time, this usually takes a little over 19h 30m.
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 updated daily.
How many operators does momondo search for flights from Chiang Mai Airport to Ko Samui Airport?
As of March 2026, there is 1 operator available to choose from 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?
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 Chiang Mai Airport to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The required travel and health documents for your Ko Samui Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ko Samui Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
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 (100.00% of total bookings).
What is the most popular airline from Chiang Mai to Ko Samui?
Based on momondo bookings for flights between Chiang Mai and Ko Samui, the leading airline is Bangkok Airways, making up 100% of the total bookings.

Best airlines flying from Chiang Mai to Ko Samui

Compare and see reviews for airlines that fly from Chiang Mai to Ko Samui with momondo

Airline	Rating	Free Cancellation	Price
Bangkok Airways	PriceFrom $173	Free Cancellation	Rating 8.1 126 reviews		Search Bangkok Airways flights

Bangkok Airways Flights From Chiang Mai to Ko Samui
Bangkok Airways flight deals from Chiang Mai to Ko Samui start from $173 round-trip. Over the 7 Bangkok Airways flights for this route in a normal week, average airfare is usually $398 round-trip - but some users have found much cheaper deals with momondo.

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Why use momondo?

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

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

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

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

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

Once all potential Chiang Mai to Ko Samui flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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 $185

This is the cheapest round-trip 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 6/21. 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

What is the cheapest month to fly to Ko Samui?

What is the cheapest day to depart on your flight to Ko Samui?

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

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

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

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

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Best airlines flying from Chiang Mai to Ko Samui

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An easier way to manage your Ko Samui 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.

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