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

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

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

Over the past year, Bangkok Airways have had the lowest number of delays on this route, with just 6% of flights being delayed.

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

About 6% of weekly flights between Chiang Mai and Ko Samui have experienced delays in the past year, with the average delay time being 100 minutes.

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

Sunday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

How popular is this Chiang Mai to Ko Samui flight route?

Flights from Chiang Mai to Ko Samui have been viewed 1 times in the past calendar month.

How long is the flight from Chiang Mai to Ko Samui?

Bangkok Airways can get you from Chiang Mai to Ko Samui in just under 11h 25m. Your travel time can differ by up to . Chiang Mai and Ko Samui are separated by a distance of 1032 km.

What is the cheapest airline to fly from Chiang Mai to Ko Samui round-trip?

Our cheapest airline available from Chiang Mai to Ko Samui is Bangkok Airways. Our recent data shows that you can find tickets from as low as ฿3,998 on this airline. You may be able to fly from Chiang Mai to Ko Samui for 70% less than the average price by searching for this airline.

Weekly flight availability from Chiang Mai to Ko Samui

The most flights from CNX to USM are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 inches per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Ko Samui when rainfall is around 58.0 mm.

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

What are the most reliable airlines from Chiang Mai to Ko Samui?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chiang Mai to Ko Samui on time: EVA Air (86%), Thai Airways (86%), เอทิฮัดแอร์เวย์ (86%).

What airports do I use to fly from Chiang Mai to Ko Samui?

If you book a flight from Chiang Mai to Ko Samui, you will be flying from Chiang Mai to Ko Samui. Flights to Ko Samui (USM) from Chiang Mai (CNX) take 1h 45m for a nonstop flight. There are 6 flights from Chiang Mai to Ko Samui per day from 1 airline.

Can I find deals for flights from Chiang Mai to Ko Samui that include hotel bookings?

Yes. In addition to deals on Chiang Mai to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Chiang Mai to Ko Samui?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Ko Samui.

Can I find deals for business class flights from Chiang Mai to Ko Samui?

Yes. Cheapflights offers flight deals from Chiang Mai to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

฿5,980+ Cheap Flights from Chiang Mai to Ko Samui

Cheap flight deals from Chiang Mai to Ko Samui

Enter your travel dates to find the best prices.

Cheapest

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One-way

Cheapest flights from Chiang Mai to Ko Samui
Explore the most affordable flight options available from Chiang Mai to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 September 2026.

Wed 28/1019:45 -

1 stop11h 25m

Fri 30/1008:50 -

Nonstop1h 50m

Deal found 5/9฿7,623

Tue 27/1010:10 -

1 stop6h 05m

Fri 30/1008:50 -

Nonstop1h 50m

Deal found 6/9฿7,754

Tue 27/1014:20 -

1 stop6h 10m

Fri 30/1008:50 -

Nonstop1h 50m

Deal found 4/9฿7,820

Thu 15/1021:05 -

1 stop10h 05m

Tue 20/1008:55 -

Nonstop1h 45m

Deal found 4/9฿7,853

Thu 15/1010:10 -

1 stop6h 40m

Mon 19/1008:55 -

Nonstop1h 45m

Deal found 3/9฿7,918

Thu 15/1022:55 -

1 stop8h 15m

Mon 19/1008:55 -

Nonstop1h 45m

Deal found 2/9฿7,951

Thu 29/1012:10 -

1 stop4h 05m

Sun 1/1108:50 -

Nonstop1h 50m

Deal found 5/9฿8,050

Find flight deals from Chiang Mai to Ko Samui

Round-trip from	฿7,623
One-way from	฿5,980
Popular in	December
Cheapest in	June
Average price	฿10,383

Bangkok Airways
28/10-30/10
1 total stop
13h 15m total
Chiang Mai to Ko Samui

Search Deals

15/9-31/12
2 total stops
20h 45m total
Chiang Mai to Ko Samui

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (฿62,688 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (฿15,872 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chiang Mai to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Sat 30/1

19:45-07:10

1 stop11h 25m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿6,013

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Fri 26/2

10:10-17:00

1 stop6h 50m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿6,473

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Sat 24/10

10:10-16:35

1 stop6h 25m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿6,506

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Thu 14/1

10:10-17:00

1 stop6h 50m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿6,538

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Sat 12/9

14:35-20:25

1 stop5h 50m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿6,900

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Sun 20/9

14:35-20:50

1 stop6h 15m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿7,097

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Sun 25/10

12:10-20:25

1 stop8h 15m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿7,163

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Sun 3/1

22:30-07:10

1 stop8h 40m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿7,327

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Thu 17/12

10:10-14:55

1 stop4h 45m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿7,491

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Sun 13/9

10:10-16:30

1 stop6h 20m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿7,754

Flights are sorted by cheapest return flights first.

Deals found on 5/9

Showing 1-10 of 19 resultsSorted by cheapest first

Best time to book a flight from Chiang Mai to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Chiang Mai with our price prediction graph.

CNX-USM

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chiang Mai to Ko Samui

Prices

Airlines

Delays

What is the cheapest month to book a flight from Chiang Mai to Ko Samui?

Currently, June is the cheapest month in which you can book a flight from Chiang Mai to Ko Samui (average of ฿8,247). Flying from Chiang Mai to Ko Samui in December is currently the most expensive (average of ฿19,057). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CNX to USM?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chiang Mai to Ko Samui as you normally would.

How much does it cost for a return flight from Chiang Mai to Ko Samui?

Airfare is typical for this route at the moment.

Chiang Mai to Ko Samui flights typically cost between ฿5,618 and ฿14,588 in October.
The cheapest return price found within the last 5 days was ฿7,623 on Bangkok Airways (28 Oct–30 Oct).

Reviews of airlines servicing Ko Samui

Read reviews from past customers who have flown with Bangkok Airways from Chiang Mai to Ko Samui. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Bangkok Airways

8.1

Very Good

133 reviews

Check prices

Reviews

1 / 8

10.0

Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect

Bangkok Airways

8.1

Very Good

133 reviews

Bangkok Airways

8.1

Very Good

133 reviews

Check prices

Reviews

1 / 8

10.0

Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect

Related info for your journey

What airports do I use to fly from Chiang Mai to Ko Samui?
If you book a flight from Chiang Mai to Ko Samui, you will be flying from Chiang Mai to Ko Samui. Flights to Ko Samui (USM) from Chiang Mai (CNX) take 1h 45m for a nonstop flight. There are 6 flights from Chiang Mai to Ko Samui per day from 1 airline.
How popular is this Chiang Mai to Ko Samui flight route?
Flights from Chiang Mai to Ko Samui have been viewed 1 times in the past calendar month.
How long is the flight from Chiang Mai to Ko Samui?
Bangkok Airways can get you from Chiang Mai to Ko Samui in just under 11h 25m. Your travel time can differ by up to . Chiang Mai and Ko Samui are separated by a distance of 1032 km.
What is the cheapest airline to fly from Chiang Mai to Ko Samui round-trip?
Our cheapest airline available from Chiang Mai to Ko Samui is Bangkok Airways. Our recent data shows that you can find tickets from as low as ฿3,998 on this airline. You may be able to fly from Chiang Mai to Ko Samui for 70% less than the average price by searching for this airline.
What are the most reliable airlines from Chiang Mai to Ko Samui?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chiang Mai to Ko Samui on time: EVA Air (86%), Thai Airways (86%), เอทิฮัดแอร์เวย์ (86%).
Can I find deals for flights from Chiang Mai to Ko Samui that include hotel bookings?
Yes. In addition to deals on Chiang Mai to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Chiang Mai to Ko Samui?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Ko Samui.
Can I find deals for business class flights from Chiang Mai to Ko Samui?
Yes. Cheapflights offers flight deals from Chiang Mai to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Chiang Mai to Ko Samui?
Currently, June is the cheapest month in which you can book a flight from Chiang Mai to Ko Samui (average of ฿8,247). Flying from Chiang Mai to Ko Samui in December is currently the most expensive (average of ฿19,057). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Ko Tao

Khanom

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Fly from Chiang Mai to Ko Samui on these airlines

Bangkok Airways flights from Chiang Mai to Ko Samui

Top airline flying from Chiang Mai to Ko Samui

Airline	Cheapest	Average	Flexibility	On-time
Bangkok Airways	Cheapest฿3,998	Average฿12,522	FlexibilityNo cancel fee	On-time74%	Search Bangkok Airways flights

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How does Cheapflights help users find flights from Chiang Mai to Ko Samui?

Cheapflights helps you search for flights from Chiang Mai to Ko Samui via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Ko Samui?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Chiang Mai to Ko Samui.

Can Cheapflights find flights from Chiang Mai to Ko Samui with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Chiang Mai to Ko Samui, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Chiang Mai to Ko Samui become cheaper?

Of course! You can now track prices for flights from Chiang Mai to Ko Samui and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Chiang Mai to Ko Samui from ฿5,980

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Chiang Mai to Ko Samui

Cheapest flights from Chiang Mai to Ko SamuiExplore the most affordable flight options available from Chiang Mai to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 September 2026.

Explore the most affordable flight options available from Chiang Mai to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 September 2026.

Best flights from Chiang Mai to Ko SamuiDiscover carefully curated flight deals from Chiang Mai to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 September 2026.

Discover carefully curated flight deals from Chiang Mai to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 September 2026.

Direct flights from Chiang Mai to Ko SamuiExplore direct flight options from Chiang Mai to Ko Samui based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 September 2026.

Explore direct flight options from Chiang Mai to Ko Samui based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 September 2026.

Last-minute flights from Chiang Mai to Ko SamuiDiscover last-minute flight deals from Chiang Mai to Ko Samui. Data last updated 7 September 2026 and is based on user searches.

Discover last-minute flight deals from Chiang Mai to Ko Samui. Data last updated 7 September 2026 and is based on user searches.

One-way flights from Chiang Mai to Ko SamuiSearch for one-way flight options from Chiang Mai to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 7 September 2026.

Search for one-way flight options from Chiang Mai to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 7 September 2026.

Find flight deals from Chiang Mai to Ko Samui

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Chiang Mai to Ko Samui that are best for you.

Best time to book a flight from Chiang Mai to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Chiang Mai with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Chiang Mai to Ko Samui?

What is the cheapest time of day to fly from CNX to USM?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chiang Mai to Ko Samui as you normally would.

How much does it cost for a return flight from Chiang Mai to Ko Samui?

Airfare is typical for this route at the moment.

Chiang Mai to Ko Samui flights typically cost between ฿5,618 and ฿14,588 in October.The cheapest return price found within the last 5 days was ฿7,623 on Bangkok Airways (28 Oct–30 Oct).

Weekly flight availability from Chiang Mai to Ko Samui

The most flights from CNX to USM are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

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

About 6% of weekly flights between Chiang Mai and Ko Samui have experienced delays in the past year, with the average delay time being 100 minutes.

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

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

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

Sunday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, Bangkok Airways have had the lowest number of delays on this route, with just 6% of flights being delayed.

Reviews of airlines servicing Ko Samui

Read reviews from past customers who have flown with Bangkok Airways from Chiang Mai to Ko Samui. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airports do I use to fly from Chiang Mai to Ko Samui?

How popular is this Chiang Mai to Ko Samui flight route?

How long is the flight from Chiang Mai to Ko Samui?

What is the cheapest airline to fly from Chiang Mai to Ko Samui round-trip?

What are the most reliable airlines from Chiang Mai to Ko Samui?

Can I find deals for flights from Chiang Mai to Ko Samui that include hotel bookings?

How can I find direct flights from Chiang Mai to Ko Samui?

Can I find deals for business class flights from Chiang Mai to Ko Samui?

What is the cheapest month to book a flight from Chiang Mai to Ko Samui?

Travelling to a place near Ko Samui?

Browse thousands of different options on Cheapflights for your next trip

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Fly from Chiang Mai to Ko Samui on these airlines

Choose from the following airlines for your flight from Chiang Mai to Ko Samui. Flights are based on user searches made on Cheapflights and were last updated on 7 September 2026.

Alternative routes for Chiang Mai to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Ko Samui by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Thailand

Book a non-stop flight to one of these other cities located in Thailand.

Search flights from Chiang Mai to Ko Samui by cabin class

Find flights from Chiang Mai to Ko Samui, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Ko Samui

Explore flights to Ko Samui departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 7 September 2026.

Chiang Mai and Ko Samui flights

Browse other Chiang Mai and Ko Samui flight options. Last updated on 7 September 2026.

Other flights from Chiang Mai

Browse through other flights departing from Chiang Mai. Flights are based on user searches made on Cheapflights and were last updated on 7 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top airline flying from Chiang Mai to Ko Samui

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How does Cheapflights help users find flights from Chiang Mai to Ko Samui?

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Ko Samui?

Can Cheapflights find flights from Chiang Mai to Ko Samui with no change fees?

Can Cheapflights notify me if prices for flights from Chiang Mai to Ko Samui become cheaper?

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Cheapest flights from Chiang Mai to Ko Samui
Explore the most affordable flight options available from Chiang Mai to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 September 2026.

Best flights from Chiang Mai to Ko Samui
Discover carefully curated flight deals from Chiang Mai to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 September 2026.

Direct flights from Chiang Mai to Ko Samui
Explore direct flight options from Chiang Mai to Ko Samui based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 September 2026.

Last-minute flights from Chiang Mai to Ko Samui
Discover last-minute flight deals from Chiang Mai to Ko Samui. Data last updated 7 September 2026 and is based on user searches.

One-way flights from Chiang Mai to Ko Samui
Search for one-way flight options from Chiang Mai to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 7 September 2026.

Chiang Mai to Ko Samui flights typically cost between ฿5,618 and ฿14,588 in October.
The cheapest return price found within the last 5 days was ฿7,623 on Bangkok Airways (28 Oct–30 Oct).