CNX - USM

£65 Find Cheap Flights from Chiang Mai to Ko Samui

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chiang Mai to Ko Samui departing on 14/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Ko Samui

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chiang Mai to Ko Samui, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chiang Mai to Ko Samui, as well as popular online travel agencies
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Cheap Flight Deals from Chiang Mai to Ko Samui (CNX-USM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Chiang Mai to Ko Samui that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Chiang Mai to Ko Samui

KAYAK's recommended return flight deals from the most popular airlines that fly from Chiang Mai to Ko Samui.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Bangkok Airways Logo
10:10 - 16:35CNX-USM
6h 25m1 stop
Bangkok Airways Logo
08:55 - 10:40USM-CNX
1h 45mdirect
£156Bangkok Airways
Find Deal
Sat, 17 May - Sun, 18 May
Bangkok Airways Logo
10:10 - 16:35CNX-USM
6h 25m1 stop
Bangkok Airways Logo
08:55 - 10:40USM-CNX
1h 45mdirect
£157Bangkok Airways
Find Deal
Sat, 17 May - Sun, 18 May
 Logo
22:20 - 07:20CNX-USM
9h 00m1 stop
 Logo
08:55 - 10:40USM-CNX
1h 45mdirect
Tue, 3 Jun - Tue, 10 Jun
 Logo
22:20 - 07:20CNX-USM
9h 00m1 stop
 Logo
07:00 - 11:15USM-CNX
4h 15m1 stop
Tue, 3 Jun - Tue, 10 Jun
Bangkok Airways Logo
20:00 - 07:20CNX-USM
11h 20m1 stop
Bangkok Airways Logo
07:00 - 11:15USM-CNX
4h 15m1 stop
£172Bangkok Airways
Find Deal
Tue, 3 Jun - Tue, 10 Jun
Bangkok Airways Logo
11:55 - 16:50CNX-USM
4h 55m1 stop
Bangkok Airways Logo
08:55 - 10:40USM-CNX
1h 45mdirect
£183Bangkok Airways
Find Deal
Tue, 20 May - Fri, 23 May
 Logo
22:25 - 17:05CNX-USM
18h 40m1 stop
 Logo
12:30 - 10:55USM-CNX
22h 25m1 stop
Tue, 17 Jun - Sat, 21 Jun
 Logo
22:25 - 07:20CNX-USM
8h 55m1 stop
 Logo
12:30 - 22:50USM-CNX
10h 20m2 stops
Tue, 17 Jun - Sat, 21 Jun
Bangkok Airways Logo
11:55 - 16:35CNX-USM
4h 40m1 stop
Bangkok Airways Logo
06:55 - 13:45USM-CNX
6h 50m1 stop
£191Bangkok Airways
Find Deal
Sat, 17 May - Sun, 18 May
Cathay Pacific Logo
19:25 - 16:35CNX-USM
21h 10m2 stops
Cathay Pacific Logo
07:00 - 18:40USM-CNX
11h 40m2 stops
£1,408Cathay Pacific
Find Deal
Tue, 17 Jun - Sat, 21 Jun

KAYAK's insights & trends for Chiang Mai to Ko Samui flights

Get data-powered insights and trends into flights from Chiang Mai to Ko Samui to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Chiang Mai to Ko Samui?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chiang Mai to Ko Samui, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Chiang Mai to Ko Samui is May, where tickets cost £213 (return) on average. On the other hand, the most expensive months are August and January, where the average cost of round-trip tickets is £302 and £292 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chiang Mai to Ko Samui, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Chiang Mai to Ko Samui, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know - Cheap tickets from Chiang Mai to Ko Samui

Low season

January

High season

September

Cheapest flight

£65
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Chiang Mai to Ko Samui

When to book flights from Chiang Mai to Ko Samui

Are your dates flexible? Find out the best times to travel from Chiang Mai to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Chiang Mai to Ko Samui

  • What routes does Bangkok Airways operate between these cities?

    Bangkok Airways is the preferred airline for many people travelling between these cities since it offers the fastest and most convenient flights. There are currently two routes available. The most popular is a direct flight between the cities. The second option is a single-stopover flight via Bangkok Suvarnabhumi.

  • What is the baggage allowance on Singapore Airlines flights?

    The standard Economy ticket is the Economy Lite, which is the cheapest option but only allows one carry-on bag of up to 8 kg. You can choose to add extra baggage during the booking process or opt for a Standard Economy ticket, which allows for the cabin bag and a checked bag weighing up to 23 kg.

  • What ticket classes does Bangkok Airways offer on these routes?

    Between Chiang Mai and Koh Samui, Bangkok Airways only offers Standard Economy Class tickets. Different flexibility options allow for extra luggage or cancellations, but there's only one cabin class on these flights. If you choose different flexibility options, the price of the ticket increases, but you often get the chance to pick your seat during the booking process.

  • Which airlines have the most eco-friendly flights?

    Thai AirAsia and Bangkok Airlines' flights with a self-transfer from Don Mueang to Bangkok Airport offer the most reduced Co2 levels. These flights have 50% less Co2. Another way to be more eco-friendly is choose public transport rather than taxis when travelling to and from airports.

  • What is the cheapest flight from Chiang Mai to Ko Samui?

    In the last 3 days, the lowest price for a flight from Chiang Mai to Ko Samui was £87 for a one-way ticket and £207 for a return.

  • Which airports will I be using when flying from Chiang Mai to Ko Samui?

    On your way to Ko Samui, you’ll fly out from Chiang Mai. You’ll be landing at Ko Samui.

  • Which aircraft models fly most regularly from Chiang Mai to Ko Samui?

    The Airbus A319 is the aircraft model that flies most regularly on the Chiang Mai to Ko Samui flight route.

  • Which airline alliances offer flights from Chiang Mai to Ko Samui?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Chiang Mai and Ko Samui, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Chiang Mai to Ko Samui?

    There are direct flights from Chiang Mai to Ko Samui on a daily basis.

  • How does KAYAK find such low prices on flights from Chiang Mai to Ko Samui?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chiang Mai to Ko Samui.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chiang Mai to Ko Samui?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ko Samui from Chiang Mai is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chiang Mai to Ko Samui?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Ko Samui with an airline and back to Chiang Mai with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chiang Mai to Ko Samui?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ko Samui from Chiang Mai up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Chiang Mai to Ko Samui

  • Looking for a cheap flight from Ko Samui to Chiang Mai? 25% of our users found flights on this route for £123 or less one-way.
  • Thai AirAsia and Bangkok Airways combine to offer one of the most affordable flights between Chiang Mai (CNX) and Koh Samui (USM), but these flights have a self-transfer stopover where you must change from Don Mueang Airport (DMK) to Bangkok Suvarnabhumi (BKK). There's a free shuttle available from Don Mueang so don't spend additional money on a taxi transfer.
  • Direct flights are the fastest way to get to Koh Samui from Chiang Mai but it's also the most expensive flight. Several single-stopover flights work out cheaper than direct trips. Both Bangkok Airways and Thai Vietjet Air offer single-stopover flights via Bangkok Suvarnabhumi Airport.
  • The quickest way to get to Chiang Mai Airport from the city centre is to arrange an airport shuttle or take a local taxi. If you want to experience what it's like travelling like a local though, jump on one of the group taxis, songtaews, with red and yellow lines. These travel on a loop to and from the airport and are much cheaper.
  • If you're taking a flight with an airline other than Bangkok Airways or Singapore Airlines, be aware that your stopovers are likely to be self-transfer stopovers. You'll need to collect and check in again at each stop. Ensure your stopover time is long enough in case of any delays since you'll be responsible for any additional costs if you miss your connecting flight.
  • For those of you looking to explore South East Asia, consider catching a flight with Singapore Airlines that offers a long stopover at Singapore Changi Airport (SIN) en route. You can venture out and explore the airport and parts of Singapore before heading back to catch your connecting flight. There are often flights with stopovers as long as 20 hours.
See more tips

Prefer to fly direct from Chiang Mai to Ko Samui?

Find which airlines fly direct from Chiang Mai Airport to Ko Samui Airport, which days they fly and book direct flights.

Direct departures

Chiang Mai to Ko Samui

Monday

Bangkok Airways, China Airlines, EVA Air, +4 more

Bangkok Airways, China Airlines, +5 more

Tuesday

Bangkok Airways, China Airlines, EVA Air, +4 more

Bangkok Airways, China Airlines, +5 more

Wednesday

Bangkok Airways, China Airlines, EVA Air, +4 more

Bangkok Airways, China Airlines, +5 more

Thursday

Bangkok Airways, China Airlines, EVA Air, +4 more

Bangkok Airways, China Airlines, +5 more

Friday

Bangkok Airways, China Airlines, EVA Air, +4 more

Bangkok Airways, China Airlines, +5 more

Saturday

Bangkok Airways, China Airlines, EVA Air, +4 more

Bangkok Airways, China Airlines, +5 more

Sunday

Bangkok Airways, China Airlines, EVA Air, +4 more

Bangkok Airways, China Airlines, +5 more

See more direct flights

Direct returns

Ko Samui to Chiang Mai

Monday

Bangkok Airways, China Airlines, EVA Air, +4 more

Bangkok Airways, China Airlines, +5 more

Tuesday

Bangkok Airways, China Airlines, EVA Air, +4 more

Bangkok Airways, China Airlines, +5 more

Wednesday

Bangkok Airways, China Airlines, EVA Air, +4 more

Bangkok Airways, China Airlines, +5 more

Thursday

Bangkok Airways, China Airlines, EVA Air, +4 more

Bangkok Airways, China Airlines, +5 more

Friday

Bangkok Airways, China Airlines, EVA Air, +4 more

Bangkok Airways, China Airlines, +5 more

Saturday

Bangkok Airways, China Airlines, EVA Air, +4 more

Bangkok Airways, China Airlines, +5 more

Sunday

Bangkok Airways, China Airlines, EVA Air, +4 more

Bangkok Airways, China Airlines, +5 more

See more direct flights
See more direct flights

Top airline flying from Chiang Mai to Ko Samui

 
See real verified KAYAK customer reviews for airlines flying from Chiang Mai to Ko Samui. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chiang Mai to Ko Samui? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Bangkok AirwaysOverall score based on 109 reviews
7.2Food
7.8Comfort
6.2Entertainment
8.5Crew
7.9Boarding
Airline reviews

We flew business class this time. The food in their economy class is much better in general. Also only coffee, tea and orange juice is free. Beer can be bought only. Same as economy, so their business class service is poor.

6.0 GoodMichael, Mar 2025USM - BKK
Read more Bangkok Airways reviews

We flew business class this time. The food in their economy class is much better in general. Also only coffee, tea and orange juice is free. Beer can be bought only. Same as economy, so their business class service is poor.

Nice flight, stress-free but why bother serving a meal on a 55 minute flight. From what I saw there was a lot of waste because travellers weren't interesting in eating on this short trip. Get rid of the meal and cut the price.

Generally good. I didn't have any food on the flight so I can't make a judgement. It smelled good.

Efficient, comfortable and clean-very good flight with friendly staff and crew

On a 45 mins flight to Koh Samui from Bangkok we were served delicious shrimp pad thai and hot tea. The flight crew did an awesome job serving a full flight.

Seats are tight and leg room so small. We had deep impressions under kneecap from the seat in front. A sign that Bangkok Airways is fully aware how small it is built is the cutout in the table. Very uncomfortable for people in size 1.80 m or more.

This is my 2nd flight with this airline. Service is very good. I was surprised they served a meal on such a short flight. The airplane landed so smooth that most people were unaware the plane had just landed. About half of the people on board applauded.

The staff were helpful and very pleasant. The food is tasty and there’s plenty of water provided. Flights are well air conditioned.

The food was inedible- The rice was hard as a rock The chicken was hard and could not chew Horrible meal. Don’t even serve it. It was an insult to think that you would have even served it.

I fly Bangkok Air regularly. Could say I am loyal to their airlines and program. The only two comments of critique I could offer is (1) using the credits from accumulated miles is not as streamlines as some of the other airlines programs I am or have been a member of... and have lost opportunity to use them before expiration. (2) Sometimes, the plane is boarded / un-boarded with a service bus that has to navigate the airport and adds unwelcomed overhead time (especially during de-boarding). If have checked luggage this is transparent; if only have carry-on will slow your departure from Suvarnabhumi by ~20 minutes or more. Otherwise, a fine airline.

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

Information on your arrival and departure airports

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