£136 Find Cheap Flights from Chiang Mai to Ko Samui – Compare and Save

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.

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.

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.

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.

Only Bangkok Airways operates flights between Chiang Mai and Ko Samui.

Flights from Chiang Mai to Ko Samui usually depart from Chiang Mai (CNX) and arrive at Ko Samui (USM).

Here are some options for this route, based on selected ticket types and cabin classes:

• Bangkok Airways: a cabin bag and a checked bag in Economy class

Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

Two cabin classes are available on flights from Chiang Mai to Ko Samui:

• Economy class
• Business Class

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £252 return via Bangkok Don Mueang Intl (DMK), compared with £317 for direct.

Connecting flights from Chiang Mai to Ko Samui most commonly pass through:

• Bangkok Suvarnabhumi (BKK) – 89% of one-stop connections
• Bangkok Don Mueang Intl (DMK) – 11% of one-stop connections
Together, these airports account for 100% of one-stop bookings on this route.

Yes. Being flexible with your travel dates can save you up to 23% on the Chiang Mai to Ko Samui route. Tuesday is the cheapest departure day at £270 return on average, while Saturday is the most expensive at £347, a difference of £78. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Chiang Mai to Ko Samui route, 6% of flights were delayed in the past 3 months, with delays averaging 1 hour 40 minutes.

Morning is the busiest departure period on Chiang Mai to Ko Samui flights, with 100% leaving in that window. Afternoon departures account for 0%, Evening flights for 0%, and Night flights for 0%.

Some of the most popular sights in Ko Samui are Lamai Beach, Chaweng Beach, and Bophut Beach. These are among the most viewed places in Ko Samui on KAYAK.

These are the earliest and latest flight times available from Chiang Mai to Ko Samui:

• Earliest: departs at 11:30 and lands at 13:15
• Latest: departs at 12:05 and lands at 13:50.

The flight takes about 1h 45m.

A direct flight from Chiang Mai to Ko Samui takes 1h 45m, covering 641 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £157 to £550. That means the highest observed fare was about 4x higher than the lowest one.

One-way fares from Chiang Mai to Ko Samui are currently lower than usual. Average one-way flight prices are about £143, which is 28% below the typical average for this route.

Bangkok Airways is the only airline operating Chiang Mai to Ko Samui flights. 94% of its flights are on time.

Evening flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Bangkok Don Mueang Intl (DMK) gives the shortest average 1-stop total travel time of 4h 29m, compared to 6h 50m via Bangkok Suvarnabhumi (BKK).

Ko Samui Airport (USM) hosts 5 major car hire companies, with daily rates starting from around £10 for economy cars. Top options include:
· Drive Car Rental
· Alamo
· Sixt
· Enterprise Rent-A-Car
· Hertz

Return flights from Chiang Mai to Ko Samui range from £263 to £352, with an average of £320 over the past 12 months. Anything below £263 counts as a good deal.