Find Cheap Flights from Chiang Mai to Ko Samui (CNX - USM)

Search hundreds of travel sites at once for deals on flights to Ko Samui

Sat 2/24
Sat 3/3
Any month
Compare vs. KAYAK |

Good to Know

Average Price:
$346
(avg. price over the last 2 weeks)
Good Deal:
$301
or less (round trip)

When to Book Flights from Chiang Mai to Ko Samui

Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $301 or less.
The cheapest flight from Chiang Mai to Ko Samui was found 55 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
Morning departure is around 12% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Chiang Mai to Ko Samui Flights

How long does a flight from Chiang Mai to Ko Samui take?
An average nonstop flight takes 3h 35m, covering a distance of 643 miles.
How many flights are there between Chiang Mai and Ko Samui?
There are 28 (nonstop) flights between Chiang Mai and Ko Samui per week, averaging 4 per day.
Which airlines provide the cheapest flights from Chiang Mai to Ko Samui?
In the past 3 days, the cheapest round-trip tickets were found on Bangkok Airways ($268) and Multiple Airlines ($303)
Do I need a passport to fly between Chiang Mai and Ko Samui?
No.
Which airlines fly most frequently between Chiang Mai and Ko Samui?
Bangkok Airways (2 times daily), SilkAir (2 times daily) are the most frequent flyers on this route.

Book cheap flights from Chiang Mai to Ko Samui (round-trip)

Airports
Origin
Chiang Mai
$268
only
$268
Destination
Ko Samui
$268
only
$268
Thu, Jun 14
CNX
USM
5h 40m
Sun, Jul 1
USM
CNX
1h 50m
Trip: 18 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 18 reviews
Boarding
8.4
Comfort
8.4
Crew
8.8
Entertainment
7.2
Food
8.0
CNX
USM
Excellent 8.3

The staff was incredibly nice! I especially enjoyed the waiting area lounge - the snacks and treats were delicious! Nicely done Bangkok Airways!

RGN
BKK
Okay 4.4

The line for check in was ridiculously long because there were not enough gate agents working for a large plane with at least 7 code shares.

HKT
BKK
Excellent 10.0

Service on board, food and drinks, seats, and puntuality.

Boarding at Bangkok International Airport is seldom from an air bridge. Taking a bus often provides a fun ride for airline fans around this huge and busy airport.

CNX
USM
Excellent 8.0

Fantastic lounge Good and quick flight

Food wasn't great

BKK
HKT
Good 6.8

Realxing in the lounge, tasty popcorn.

Loud obnoxious and rude tourist.

Sat, Jun 9
CNX
USM
11h 40m
Sun, Jun 17
USM
CNX
1h 50m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Aug 27
CNX
USM
11h 30m
Sun, Sep 9
USM
CNX
1h 50m
Trip: 14 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 18 reviews
Boarding
8.4
Comfort
8.4
Crew
8.8
Entertainment
7.2
Food
8.0
CNX
BKK
Excellent 9.0

Staff

I would like alcohol selection, would pay. See southwests options. Also I don't think I've ever been in a comfortable plane, but I'd like too

CNX
USM
Excellent 8.3

The staff was incredibly nice! I especially enjoyed the waiting area lounge - the snacks and treats were delicious! Nicely done Bangkok Airways!

BKK
REP
Excellent 10.0

Flight is comfortable

They changed the gate and they were too far. Took a while to go back. No proper information

BKK
HKT
Good 6.8

Realxing in the lounge, tasty popcorn.

Loud obnoxious and rude tourist.

TDX
BKK
Good 7.3

Rice was too gooey!

Rice

Sun, Jul 1
CNX
USM
7h 50m
Sun, Jul 15
USM
CNX
1h 50m
Trip: 15 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 18 reviews
Boarding
8.4
Comfort
8.4
Crew
8.8
Entertainment
7.2
Food
8.0
CNX
USM
Excellent 10.0

Awesome flight attendants. Meal on a very short flight!

Check in process was a bit of a mess but that's a person problem not an airline problem

PNH
BKK
Good 7.6

Efficient ticketing and boarding. Polite and helpful staff and crew.

No problems to report.

TDX
BKK
Good 7.3

Rice was too gooey!

Rice

THS
BKK
Excellent 10.0

We were on the flight for just over an hour at mid afternoon and they served us a full meal ! The airline had much roomier seats and the staff are very professional.

We liked everything and would recommend this airline

HKT
BKK
Excellent 10.0

Service on board, food and drinks, seats, and puntuality.

Boarding at Bangkok International Airport is seldom from an air bridge. Taking a bus often provides a fun ride for airline fans around this huge and busy airport.

Tue, Jun 12
CNX
USM
8h 25m
Sun, Jun 17
USM
CNX
1h 50m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Wed, May 23
CNX
USM
5h 10m
Sat, Jun 2
USM
CNX
1h 50m
Trip: 11 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 18 reviews
Boarding
8.4
Comfort
8.4
Crew
8.8
Entertainment
7.2
Food
8.0
TDX
BKK
Good 7.3

Rice was too gooey!

Rice

CNX
USM
Excellent 8.0

Fantastic lounge Good and quick flight

Food wasn't great

HKT
BKK
Excellent 10.0

Service on board, food and drinks, seats, and puntuality.

Boarding at Bangkok International Airport is seldom from an air bridge. Taking a bus often provides a fun ride for airline fans around this huge and busy airport.

CNX
USM
Excellent 8.3

The staff was incredibly nice! I especially enjoyed the waiting area lounge - the snacks and treats were delicious! Nicely done Bangkok Airways!

BKK
REP
Excellent 10.0

Flight is comfortable

They changed the gate and they were too far. Took a while to go back. No proper information

Mon, Jun 11
CNX
USM
11h 40m
Sun, Jul 1
USM
CNX
1h 50m
Trip: 21 days
Overall 0.0 Poor
Based on 0 reviews
Thu, May 24
CNX
USM
5h 10m
Sun, Jun 3
USM
CNX
1h 50m
Trip: 11 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 18 reviews
Boarding
8.4
Comfort
8.4
Crew
8.8
Entertainment
7.2
Food
8.0
BKK
HKT
Good 6.8

Realxing in the lounge, tasty popcorn.

Loud obnoxious and rude tourist.

CNX
BKK
Excellent 9.0

Staff

I would like alcohol selection, would pay. See southwests options. Also I don't think I've ever been in a comfortable plane, but I'd like too

CNX
USM
Excellent 10.0

Awesome flight attendants. Meal on a very short flight!

Check in process was a bit of a mess but that's a person problem not an airline problem

CNX
USM
Excellent 8.3

The staff was incredibly nice! I especially enjoyed the waiting area lounge - the snacks and treats were delicious! Nicely done Bangkok Airways!

PNH
BKK
Good 7.6

Efficient ticketing and boarding. Polite and helpful staff and crew.

No problems to report.

Wed, Jun 13
CNX
USM
8h 25m
Sun, Jul 1
USM
CNX
1h 50m
Trip: 19 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 24
CNX
USM
8h 40m
Wed, Apr 25
USM
CNX
1h 50m
Trip: 2 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 18 reviews
Boarding
8.4
Comfort
8.4
Crew
8.8
Entertainment
7.2
Food
8.0
CNX
USM
Excellent 10.0

Awesome flight attendants. Meal on a very short flight!

Check in process was a bit of a mess but that's a person problem not an airline problem

REP
BKK
Excellent 9.2

The airline staff was very friendly, helpful and was able to serve us lunch efficiently enough to have plenty of time to eat it. The modest lunch was very tasty. The airline lounge in Siem Reap was very nice with little snacks and drinks. The chair and table arrangement was much better than waiting near the gate.

Although the airline cannot control this, the immigration lines were long and tiresome. The inside of the airplane was clean and nothing torn, but looked dated. The seats were not very soft. The window was not clean enough to take good pictures.

CNX
BKK
Excellent 9.0

Staff

I would like alcohol selection, would pay. See southwests options. Also I don't think I've ever been in a comfortable plane, but I'd like too

RGN
BKK
Okay 4.4

The line for check in was ridiculously long because there were not enough gate agents working for a large plane with at least 7 code shares.

CNX
USM
Excellent 8.3

The staff was incredibly nice! I especially enjoyed the waiting area lounge - the snacks and treats were delicious! Nicely done Bangkok Airways!

Fri, Jun 15
CNX
USM
8h 25m
Sun, Jul 1
USM
CNX
1h 50m
Trip: 17 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jun 16
CNX
USM
11h 40m
Sun, Jul 1
USM
CNX
1h 50m
Trip: 16 days
Overall 0.0 Poor
Based on 0 reviews
Mon, May 7
CNX
USM
3h 35m
Tue, May 15
USM
CNX
1h 50m
Trip: 9 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 18 reviews
Boarding
8.4
Comfort
8.4
Crew
8.8
Entertainment
7.2
Food
8.0
CNX
USM
Excellent 10.0

Awesome flight attendants. Meal on a very short flight!

Check in process was a bit of a mess but that's a person problem not an airline problem

CNX
USM
Excellent 8.0

Fantastic lounge Good and quick flight

Food wasn't great

TDX
BKK
Good 7.3

Rice was too gooey!

Rice

REP
BKK
Excellent 9.2

The airline staff was very friendly, helpful and was able to serve us lunch efficiently enough to have plenty of time to eat it. The modest lunch was very tasty. The airline lounge in Siem Reap was very nice with little snacks and drinks. The chair and table arrangement was much better than waiting near the gate.

Although the airline cannot control this, the immigration lines were long and tiresome. The inside of the airplane was clean and nothing torn, but looked dated. The seats were not very soft. The window was not clean enough to take good pictures.

THS
BKK
Excellent 10.0

We were on the flight for just over an hour at mid afternoon and they served us a full meal ! The airline had much roomier seats and the staff are very professional.

We liked everything and would recommend this airline

Wed, Jun 6
CNX
USM
8h 15m
Sun, Jun 17
USM
CNX
1h 50m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 8
CNX
USM
12h 35m
Thu, May 17
USM
CNX
1h 50m
Trip: 10 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 18 reviews
Boarding
8.4
Comfort
8.4
Crew
8.8
Entertainment
7.2
Food
8.0
CNX
USM
Excellent 8.3

The staff was incredibly nice! I especially enjoyed the waiting area lounge - the snacks and treats were delicious! Nicely done Bangkok Airways!

PNH
BKK
Good 7.6

Efficient ticketing and boarding. Polite and helpful staff and crew.

No problems to report.

RGN
BKK
Okay 4.4

The line for check in was ridiculously long because there were not enough gate agents working for a large plane with at least 7 code shares.

HKT
BKK
Excellent 10.0

Service on board, food and drinks, seats, and puntuality.

Boarding at Bangkok International Airport is seldom from an air bridge. Taking a bus often provides a fun ride for airline fans around this huge and busy airport.

CNX
USM
Excellent 10.0

Awesome flight attendants. Meal on a very short flight!

Check in process was a bit of a mess but that's a person problem not an airline problem

Thu, Jun 7
CNX
USM
3h 55m
Sun, Jun 17
USM
CNX
1h 50m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Wed, May 9
CNX
USM
8h 40m
Thu, May 17
USM
CNX
1h 50m
Trip: 9 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 18 reviews
Boarding
8.4
Comfort
8.4
Crew
8.8
Entertainment
7.2
Food
8.0
BKK
REP
Excellent 10.0

Flight is comfortable

They changed the gate and they were too far. Took a while to go back. No proper information

HKT
BKK
Excellent 10.0

Service on board, food and drinks, seats, and puntuality.

Boarding at Bangkok International Airport is seldom from an air bridge. Taking a bus often provides a fun ride for airline fans around this huge and busy airport.

CNX
USM
Excellent 8.3

The staff was incredibly nice! I especially enjoyed the waiting area lounge - the snacks and treats were delicious! Nicely done Bangkok Airways!

BKK
HKT
Good 6.8

Realxing in the lounge, tasty popcorn.

Loud obnoxious and rude tourist.

TDX
BKK
Good 7.3

Rice was too gooey!

Rice

Fri, Jun 8
CNX
USM
4h 25m
Sun, Jun 17
USM
CNX
1h 50m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Thu, May 10
CNX
USM
10h 00m
Fri, May 18
USM
CNX
1h 50m
Trip: 9 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 18 reviews
Boarding
8.4
Comfort
8.4
Crew
8.8
Entertainment
7.2
Food
8.0
BKK
HKT
Good 6.8

Realxing in the lounge, tasty popcorn.

Loud obnoxious and rude tourist.

REP
BKK
Excellent 9.2

The airline staff was very friendly, helpful and was able to serve us lunch efficiently enough to have plenty of time to eat it. The modest lunch was very tasty. The airline lounge in Siem Reap was very nice with little snacks and drinks. The chair and table arrangement was much better than waiting near the gate.

Although the airline cannot control this, the immigration lines were long and tiresome. The inside of the airplane was clean and nothing torn, but looked dated. The seats were not very soft. The window was not clean enough to take good pictures.

HKT
BKK
Excellent 10.0

Service on board, food and drinks, seats, and puntuality.

Boarding at Bangkok International Airport is seldom from an air bridge. Taking a bus often provides a fun ride for airline fans around this huge and busy airport.

CNX
USM
Excellent 10.0

Awesome flight attendants. Meal on a very short flight!

Check in process was a bit of a mess but that's a person problem not an airline problem

RGN
BKK
Okay 4.4

The line for check in was ridiculously long because there were not enough gate agents working for a large plane with at least 7 code shares.

Sat, Jun 9
CNX
USM
8h 15m
Fri, Jun 15
USM
CNX
1h 50m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Show more results

Chiang Mai to Ko Samui Flight Information

Flights Arrive in Ko Samui
Flights Depart from Chiang Mai
Flight Price $268
Distance 643 miles
Airlines Bangkok Airways
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.