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$76 Find cheap flights from Chiang Mai to Koh 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 Koh Samui departing on 9/4. 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
0 bags
Sat 5/25
Sat 6/1

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chiang Mai to Koh 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 Koh Samui, as well as popular online travel agencies
In the last 7 days travelers have searched 44,979,812 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Chiang Mai to Koh Samui (CNX-USM)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chiang Mai to Koh 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 and deals for you by selecting your travel dates.
Choose your dates
11:55 am - 5:05 pmCNX-USM
5h 10m1 stop
8:55 am - 10:40 amUSM-CNX
1h 45mnonstop
$157Bangkok Airways
Find Deal
Tue, Oct 8 - Thu, Oct 10
10:25 pm - 7:20 amCNX-USM
8h 55m1 stop
7:00 am - 2:50 pmUSM-CNX
7h 50m1 stop
Tue, Jun 4 - Sat, Jun 8
10:10 am - 3:45 pmCNX-USM
5h 35m1 stop
7:00 am - 11:15 amUSM-CNX
4h 15m1 stop
$197Bangkok Airways
Find Deal
Tue, Oct 8 - Thu, Oct 10
10:25 pm - 7:20 amCNX-USM
8h 55m1 stop
8:55 am - 10:40 amUSM-CNX
1h 45mnonstop
Tue, Jun 4 - Sat, Jun 8
6:30 am - 8:30 pmCNX-USM
14h 00m1 stop
8:55 am - 10:40 amUSM-CNX
1h 45mnonstop
Wed, May 22 - Wed, May 29
9:30 am - 7:45 pmCNX-USM
10h 15m1 stop
8:55 am - 10:40 amUSM-CNX
1h 45mnonstop
Thu, Jun 20 - Wed, Jul 3
10:10 am - 5:05 pmCNX-USM
6h 55m1 stop
8:55 am - 10:40 amUSM-CNX
1h 45mnonstop
$237Bangkok Airways
Find Deal
Mon, Jun 3 - Thu, Jun 20
7:50 am - 10:30 amCNX-USM
26h 40m2 stops
7:00 am - 4:45 pmUSM-CNX
9h 45m1 stop
Thu, Jun 20 - Wed, Jul 3
10:10 am - 9:35 pmCNX-USM
11h 25m1 stop
8:55 am - 10:40 amUSM-CNX
1h 45mnonstop
$251Bangkok Airways
Find Deal
Mon, May 13 - Tue, May 14
11:45 am - 8:30 pmCNX-USM
8h 45m1 stop
6:55 am - 8:15 pmUSM-CNX
13h 20m1 stop
Wed, May 22 - Wed, May 29

Flights from Chiang Mai to Koh Samui - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from Chiang Mai to Koh Samui?

The average price of all flights from Chiang Mai to Koh Samui clicked on KAYAK for each day over the last 12 months.
For Chiang Mai to Koh Samui, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Koh Samui back to Chiang Mai, the best deals are generally found on Wednesday, with Friday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Chiang Mai to Koh 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 Koh Samui is September, where tickets cost $187 on average. On the other hand, the most expensive months are July and December, where the average cost of tickets is $364 and $350 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Chiang Mai to Koh Samui, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Chiang Mai to Koh Samui, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 69 days before departure.

Which airlines fly non-stop between Chiang Mai and Koh Samui?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Chiang Mai to Koh Samui.
There is just one airline that flies from Chiang Mai to Koh Samui direct and that is Bangkok Airways. The best one-way deal found from Bangkok Airways for the route is $150.

How many flights are there between Chiang Mai and Koh Samui per day?

Each day, there are 2 nonstop flights that take off from Chiang Mai and land in Koh Samui, with an average flight time of 1h 45m. The most common departure time is 11:00 am and most flights take off in the morning. Each week, there are 14 flights and there are the same amount of flights each day 2.

Which cabin class options are there for flights between Chiang Mai and Koh Samui?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Chiang Mai to Koh Samui take?

The duration of a nonstop flight to Koh Samui from Chiang Mai is typically 1h 45m. The journey crosses a distance of 641 miles.

What’s the earliest departure time from Chiang Mai to Koh Samui?

Early birds can take the earliest flight from Chiang Mai at 11:35 am and will be landing in Koh Samui at 1:20 pm.

What’s the latest departure time from Chiang Mai to Koh Samui?

If you prefer to fly at night, the latest flight from Chiang Mai to Koh Samui jets off at 11:35 am and lands at 1:20 pm.

Good to know

Low season

September

High season

December

Cheapest flight

$76
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from Chiang Mai to Koh Samui

When to book flights from Chiang Mai to Koh Samui

Are your dates flexible? Find out the best times to travel from Chiang Mai to Koh Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 Koh Samui

  • Does Samui International Airport have an airline lounge?

    USM has the Blue-Ribbon Club Lounge in the International Terminal near gate 6 and the Domestic Terminal between gates 2 and 3. Consider flying Business Class on Bangkok Airways to gain access to the lounge. You can use a lounge membership program, or prepaid lounge passes to access the lounge. Enjoy this lounge's comfortable and quiet environment with complimentary food and beverages and shower facilities.

  • Which airline flies sustainably from Chiang Mai to Koh Samui?

    On average, a passenger flying on this route emits about 696 lbs of carbon. When plying the route, you can have eco-friendlier travel using environmentally sustainable flights by Nok Air, Bangkok Airways, Thai AirAsia, and Thai Vietjet Air. Consider flying Nok Air and Bangkok Airways, which have fewer carbon emissions by 48%. Eco-friendly airlines flying the route use fuel-efficient planes to reduce carbon emissions.

  • Which layover options do I have from Chiang Mai to Koh Samui?

    You can have direct or layover flights on this route. Many airlines offer single and multiple stopovers if you want to fly connecting flights on this route. Your layover city will depend on the number of layovers you want and the airline you fly on the route. Some of the common cities for single layover flights plying the route include Bangkok at BKK and DMK and Phunet City at HKT. The airlines offering single layover travel on this route include Multiple Airlines, Bangkok Airways, and Thai AirAsia.

  • Which airline flying to Koh Samui from Chiang Mai has a favorable pet policy?

    If you are flying on this route with your pet, book an airline that allows your pet to travel in the cabin or as checked cargo. Bangkok Airways allows passengers to have pets in a cabin at an extra charge. However, your pet must weigh at most 15 lbs as the combined weight with its carrier. The dimensions of your pet carrier must be at most 18 by 11 by 9 inches.

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

    In the last 3 days, the lowest price for a flight from Chiang Mai to Koh Samui was $76 for a one-way ticket and $157 for a round-trip.

  • Do I need a passport to fly between Chiang Mai and Koh Samui?

    A passport is not required to fly from Chiang Mai to Koh Samui.

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

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

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

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

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

    There are nonstop flights from Chiang Mai to Koh Samui on a daily basis.

  • How does KAYAK find such low prices on flights from Chiang Mai to Koh 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 Koh Samui.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Koh 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 Koh Samui?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Koh Samui with an airline and back to Chiang Mai with another airline. Booking your flights between Chiang Mai and USM can sometimes prove cheaper using this method.

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

Top tips for finding a cheap flight from CNX to Koh Samui

  • Looking for a cheap flight? 25% of our users found flights on this route for $189 or less one-way and $339 or less round-trip.
  • Chiang Mai International Airport (CNX) is the primary airport serving the city of Chiang Mai. The airport handles domestic and international travel to and from Chiang Mai. CNX is the main airport for nearby towns, including Lamphun and Sansai.
  • Samui International Airport (USM) is the only one serving the island and has a limited number of airlines offering travel to and from the airport. Therefore, when flying to Koh Samui USM, consider flying Business Class on Bangkok Airways, which offers exclusive fast-track services to business class travelers.
  • If you are a frequent flyer on Bangkok Airways, the airline offers various exclusive privileges for frequent flyers through its FlyerBonus program. The program has multiple benefits, including priority services, additional baggage allowance, and premium access to Koh Samui Airport's lounge.
  • Bangkok Airways offers a seat selection option to passengers where you can select and reserve a seat subject to availability. You can choose a seat based on your preferences, such as aisle seats, window seats, and seats with extra legroom.
  • If you want to upgrade your seat or ticket, consider flying Bangkok Airways, which allows passengers to upgrade from Economy Class to Business Class if the class of service you are upgrading to has available seats. Upgrading your class of service will cost an additional fee however will be cheaper than initially purchasing a Business Class ticket.
See more tips

Prefer to fly non-stop from Chiang Mai to Koh Samui?

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

Nonstop 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

Nonstop 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 Koh Samui

 
See real verified KAYAK customer reviews for airlines flying from Chiang Mai to Koh 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 Koh 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 215 reviews
8.8crew
8.1comfort
6.9entertainment
7.6food
8.4boarding
Airline reviews

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.

10.0 ExcellentGordon, Apr 2024BKK - USM
Read more about Bangkok Airways reviews

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.

Should be better if they provide more decent snacks. Also my flight took off was delayed by 15 minutes. I'd like them to improve to more punctual timing.

Bangkok Air has been hit with the challenge of flying during COVID like everyone else. Still, they are early to get started again and offer normal services when possible. It is nice to have a lounge for all passengers vs. going to gate and sitting to stare out at planes.

Pros: "Overall, the staff managed well the extra challenge of shutdowns and restrictions introduced by COVID. No complaints from me!"
Cons: "Honestly, Bangkok Air is one of my preferred regional carriers. "Normally" the food served is tasty, the plane is comfortable and the staff quite efficient. I have travelled a lot in my life and if there was a shortfall, would say so. Then again, I don't nitpick what professionals need to do to accomplish their jobs."
Cons: "Very good food and launch in gate but in check in they took my powerbank."

Book cheap flights from Chiang Mai to Koh Samui

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Chiang Mai to Koh Samui found on KAYAK in the last 72 hours.
9/4Wed
1 stopBangkok Airways
6h 25mCNX-USM
$76
6/26Wed
1 stopBangkok Airways
7h 00mCNX-USM
$79
5/27Mon
1 stop
14h 00mCNX-USM
$89
9/9Mon
1 stopBangkok Airways
4h 40mCNX-USM
$90
5/27Mon
1 stop
7h 45mCNX-USM
$92
7/8Mon
1 stop
12h 50mCNX-USM
$94
7/8Mon
1 stop
10h 55mCNX-USM
$96
6/11Tue
1 stopBangkok Airways
11h 20mCNX-USM
$98
5/19Sun
1 stop
13h 45mCNX-USM
$104
5/7Tue
1 stop
9h 50mCNX-USM
$111

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Chiang Mai - Koh Samui Flights

Departure:

Chiang Mai (CNX)Thailand

Destination:

Koh Samui (USM)Thailand

Return flight deals:

Koh Samui - Chiang Mai

Cabin classes:

$239

Browse origins:

  • Flights » 
  • Chiang Mai

Browse destinations:

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  • Koh Samui