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Cheap flights from Chiang Mai to Ko Samui from C$ 258

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 8/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Chiang Mai to Ko Samui

Cheap round-trip flights

Enter your travel dates to find the best prices.
Bangkok Airways Logo
11:55 a.m. - 4:35 p.m.
CNX
-
USM
4h 40m
1 stop
Bangkok Airways Logo
8:55 a.m. - 10:40 a.m.
USM
-
CNX
1h 45mdirect
C$ 258Bangkok Airways
Mon, 8 Jun - Fri, 12 Jun
Multiple Airlines Logo
2:20 p.m. - 9:20 p.m.
CNX
-
USM
7h 00m
1 stop
Multiple Airlines Logo
8:15 a.m. - 3:40 p.m.
USM
-
CNX
7h 25m
1 stop
C$ 446Multiple Airlines
Thu, 12 Mar - Sun, 15 Mar
Bangkok Airways Logo
12:10 p.m. - 5:00 p.m.
CNX
-
USM
4h 50m
1 stop
Bangkok Airways Logo
8:50 a.m. - 10:40 a.m.
USM
-
CNX
1h 50mdirect
C$ 468Bangkok Airways
Sun, 8 Mar - Wed, 18 Mar
Multiple Airlines Logo
2:20 p.m. - 8:25 p.m.
CNX
-
USM
6h 05m
1 stop
Multiple Airlines Logo
8:15 a.m. - 3:40 p.m.
USM
-
CNX
7h 25m
1 stop
C$ 469Multiple Airlines
Wed, 11 Mar - Sun, 15 Mar
Bangkok Airways Logo
10:10 a.m. - 5:05 p.m.
CNX
-
USM
6h 55m
1 stop
Bangkok Airways Logo
6:00 a.m. - 1:45 p.m.
USM
-
CNX
7h 45m
1 stop
C$ 512Bangkok Airways
Sun, 3 May - Mon, 4 May
Multiple Airlines Logo
10:25 p.m. - 8:05 a.m.
CNX
-
USM
9h 40m
1 stop
Multiple Airlines Logo
11:10 a.m. - 3:40 p.m.
USM
-
CNX
4h 30m
1 stop
C$ 539Multiple Airlines
Wed, 4 Mar - Wed, 11 Mar
Bangkok Airways Logo
11:55 a.m. - 4:35 p.m.
CNX
-
USM
4h 40m
1 stop
Bangkok Airways Logo
8:55 a.m. - 10:40 a.m.
USM
-
CNX
1h 45mdirect
C$ 541Bangkok Airways
Sun, 19 Jul - Thu, 23 Jul
Multiple Airlines Logo
10:25 p.m. - 7:35 a.m.
CNX
-
USM
9h 10m
1 stop
Multiple Airlines Logo
8:15 a.m. - 3:40 p.m.
USM
-
CNX
7h 25m
1 stop
C$ 576Multiple Airlines
Tue, 3 Feb - Sat, 7 Feb
Bangkok Airways Logo
9:40 p.m. - 7:50 a.m.
CNX
-
USM
10h 10m
1 stop
Bangkok Airways Logo
8:50 a.m. - 10:40 a.m.
USM
-
CNX
1h 50mdirect
C$ 579Bangkok Airways
Tue, 17 Feb - Fri, 27 Feb
Multiple Airlines Logo
10:25 p.m. - 7:35 a.m.
CNX
-
USM
9h 10m
1 stop
Multiple Airlines Logo
8:15 a.m. - 3:40 p.m.
USM
-
CNX
7h 25m
1 stop
C$ 586Multiple Airlines
Tue, 17 Feb - Tue, 24 Feb

Bangkok Airways flights from Chiang Mai to Ko Samui

Our best Bangkok Airways deals on Chiang Mai to Ko Samui flight tickets
Bangkok Airways
8 Jun
CNX11:55 a.m.Chiang Mai
4h 40m
1 stop
USM4:35 p.m.Ko Samui
12 Jun
USM8:55 a.m.Ko Samui
1h 45m
CNX10:40 a.m.Chiang Mai
C$ 258
Bangkok Airways
8 Mar
CNX12:10 p.m.Chiang Mai
4h 50m
1 stop
USM5:00 p.m.Ko Samui
18 Mar
USM8:50 a.m.Ko Samui
1h 50m
CNX10:40 a.m.Chiang Mai
C$ 468
Bangkok Airways
3 May
CNX10:10 a.m.Chiang Mai
6h 55m
1 stop
USM5:05 p.m.Ko Samui
4 May
USM6:00 a.m.Ko Samui
7h 45m
1 stop
CNX1:45 p.m.Chiang Mai
C$ 512

momondo Fare Finder

 
Customize your flight search to find flights from Chiang Mai to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 20 January 2026.
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

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Mon 8/6

11:55 a.m.-4:35 p.m.

1 stop4h 40m

Ko Samui

Fri 12/6

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

Nonstop1h 45m

C$ 258

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 12/3

2:20 p.m.-9:20 p.m.

1 stop7h 00m

Ko Samui

Sun 15/3

8:15 a.m.-3:40 p.m.

1 stop7h 25m

C$ 446

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Sun 8/3

12:10 p.m.-5:00 p.m.

1 stop4h 50m

Ko Samui

Wed 18/3

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

Nonstop1h 50m

C$ 468

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Wed 11/3

2:20 p.m.-8:25 p.m.

1 stop6h 05m

Ko Samui

Sun 15/3

8:15 a.m.-3:40 p.m.

1 stop7h 25m

C$ 469

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Sun 3/5

10:10 a.m.-5:05 p.m.

1 stop6h 55m

Ko Samui

Mon 4/5

6:00 a.m.-1:45 p.m.

1 stop7h 45m

C$ 512

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Wed 4/3

10:25 p.m.-8:05 a.m.

1 stop9h 40m

Ko Samui

Wed 11/3

11:10 a.m.-3:40 p.m.

1 stop4h 30m

C$ 539

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Sun 19/7

11:55 a.m.-4:35 p.m.

1 stop4h 40m

Ko Samui

Thu 23/7

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

Nonstop1h 45m

C$ 541

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Tue 3/2

10:25 p.m.-7:35 a.m.

1 stop9h 10m

Ko Samui

Sat 7/2

8:15 a.m.-3:40 p.m.

1 stop7h 25m

C$ 576

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Tue 17/2

9:40 p.m.-7:50 a.m.

1 stop10h 10m

Ko Samui

Fri 27/2

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

Nonstop1h 50m

C$ 579

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Tue 17/2

10:25 p.m.-7:35 a.m.

1 stop9h 10m

Ko Samui

Tue 24/2

8:15 a.m.-3:40 p.m.

1 stop7h 25m

C$ 586

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ko Samui from

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?

The month of September is, on average, the cheapest month to fly to Ko Samui from Chiang Mai, with most prices found around C$ 394. 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$ 414.

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 C$ 526 when searching weeks out. 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 C$ 222 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 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 January 2026, prices for Chiang Mai to Ko Samui flights are approximately 35% 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

Fastest flight time

6h 00m

Direct flights

Mon, Wed and Sun

Airports in Ko Samui

1 airport
The fastest flight from Chiang Mai to Ko Samui takes 6h 00m
Direct flights go from Chiang Mai to Ko Samui on Monday, Wednesday and Sunday. There are no airlines offering direct flights.
There is 1 airport in Ko Samui. From Chiang Mai there are direct flights to Ko Samui (USM).
Search flight deals

  • 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?

Travelling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
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?

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.

An easier way to manage your Ko Samui trip

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