CNX - USM

฿5,791 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 9/6. 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.
1 adult
1 adult, Economy, 0 bags

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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Everything you should know

Cheapest return fare
฿8,180
Typical prices: ฿16,670-฿11,141
Multiple Airlines
Tue 24/11Sun 20/12
CNX - USM • 1 stop
Cheapest direct flights
฿10,732
Typical prices: ฿14,920-฿11,059
Bangkok Airways
Sun 29/11Thu 3/12
CNX - USM • Direct
Direct flights
You can fly direct with Bangkok Airways. Average duration is 1h 45m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 96% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to travel
Cheapest • 32% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Ko Samui!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Chiang Mai to Ko Samui

Tue 24 Nov - Sun 20 Dec
Multiple Airlines Logo
22:30 - 07:45
CNX
-
USM
9h 15m
1 stop
Multiple Airlines Logo
08:50 - 10:40
USM
-
CNX
1h 50mdirect
฿8,180Multiple Airlines
Sat 21 Nov - Sun 20 Dec
Multiple Airlines Logo
22:50 - 07:10
CNX
-
USM
8h 20m
1 stop
Multiple Airlines Logo
08:50 - 10:40
USM
-
CNX
1h 50mdirect
฿8,212Multiple Airlines
Tue 1 Sep - Fri 4 Sep
Multiple Airlines Logo
22:30 - 07:10
CNX
-
USM
8h 40m
1 stop
Multiple Airlines Logo
08:55 - 10:40
USM
-
CNX
1h 45mdirect
฿8,245Multiple Airlines
Mon 23 Nov - Mon 21 Dec
Multiple Airlines Logo
22:30 - 07:10
CNX
-
USM
8h 40m
1 stop
Multiple Airlines Logo
08:50 - 10:40
USM
-
CNX
1h 50mdirect
฿8,474Multiple Airlines
Tue 24 Nov - Thu 24 Dec
Multiple Airlines Logo
22:30 - 07:10
CNX
-
USM
8h 40m
1 stop
Multiple Airlines Logo
08:50 - 10:40
USM
-
CNX
1h 50mdirect
฿8,703Multiple Airlines
Sat 21 Nov - Thu 24 Dec
Multiple Airlines Logo
22:50 - 07:10
CNX
-
USM
8h 20m
1 stop
Multiple Airlines Logo
08:50 - 10:40
USM
-
CNX
1h 50mdirect
฿8,736Multiple Airlines
Sun 22 Nov - Wed 23 Dec
Multiple Airlines Logo
20:40 - 07:10
CNX
-
USM
10h 30m
1 stop
Multiple Airlines Logo
08:50 - 10:40
USM
-
CNX
1h 50mdirect
฿8,899Multiple Airlines
Mon 23 Nov - Thu 24 Dec
Multiple Airlines Logo
22:30 - 07:10
CNX
-
USM
8h 40m
1 stop
Multiple Airlines Logo
08:50 - 10:40
USM
-
CNX
1h 50mdirect
฿8,998Multiple Airlines
Thu 18 Jun - Mon 22 Jun
Multiple Airlines Logo
22:55 - 16:55
CNX
-
USM
18h 00m
2 stops
Multiple Airlines Logo
08:55 - 10:40
USM
-
CNX
1h 45mdirect
฿9,096Multiple Airlines
Thu 18 Jun - Mon 22 Jun
Multiple Airlines Logo
22:20 - 16:55
CNX
-
USM
18h 35m
2 stops
Multiple Airlines Logo
08:55 - 10:40
USM
-
CNX
1h 45mdirect
฿9,325Multiple Airlines
Booking Insights

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.

How much is a return flight from Chiang Mai to Ko Samui?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Chiang Mai to Ko Samui departing in November.

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 September, where tickets cost ฿9,161 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is ฿18,977 and ฿18,650 respectively.

Can I save money by flying with a stopover from Chiang Mai to Ko Samui?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at ฿5,618 on average.

Good to know

Low seasonFebruary
Cheapest flight฿5,562
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly (9% more expensive 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 ฿5,562 for a one-way ticket and ฿8,180 for a return.

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

    Chiang Mai airport is called Chiang Mai and the only airport in Ko Samui is 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.

  • 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.

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

  • Looking for a cheap flight? 25% of our users found flights on this route for ฿7,949 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.

Prefer to fly direct from Chiang Mai to Ko Samui?

 
Nonstop data is based off flight results for the next 60 days. Find direct flights from all airlines flying nonstop 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

Bangkok Airways

Tuesday

Bangkok Airways

Bangkok Airways

Wednesday

Bangkok Airways

Bangkok Airways

Thursday

Bangkok Airways

Bangkok Airways

Friday

Bangkok Airways

Bangkok Airways

Saturday

Bangkok Airways

Bangkok Airways

Sunday

Bangkok Airways

Bangkok Airways

See more direct flights

Direct returns

Ko Samui to Chiang Mai

Monday

Bangkok Airways

Bangkok Airways

Tuesday

Bangkok Airways

Bangkok Airways

Wednesday

Bangkok Airways

Bangkok Airways

Thursday

Bangkok Airways

Bangkok Airways

Friday

Bangkok Airways

Bangkok Airways

Saturday

Bangkok Airways

Bangkok Airways

Sunday

Bangkok Airways

Bangkok Airways

See more direct flights

Reviews of the 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.
8.1
Bangkok AirwaysOverall score based on 129 reviews
6.2Entertainment
8.5Crew
7.3Food
8.1Boarding
7.9Comfort
Airline reviews

Excellent airline. Seats were very comfortable with lots of legroom. In flight service was excellent as well

10.0 Excellentpuravi, Jan 2026
KBV - BKK
Read more Bangkok Airways reviews

Excellent airline. Seats were very comfortable with lots of legroom. In flight service was excellent as well

We were pleased with the flight experience. Nothing to complain or shout about. Unfortunately the rating scale in this survey will skew the results and give a false impression of what really happened. For example, we didn’t use the entertainment system yet we are forced to reply. A far more insightful scale would include “not applicable.”

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.

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

Information on your arrival and departure airports