Cheap Flights from Chiang Mai to Samui International

Compare Chiang Mai to Samui International flight deals

Find the cheapest month or even day of the year to fly to Samui International

Book the best Samui International fare with no extra fees

Flight deals from Chiang Mai to Samui International

Looking for a cheap last-minute deal or the best return flight from Chiang Mai to Samui International? Find the lowest prices on one-way and return tickets right here.

Koh Samui.R 1,585 per passenger.Departing Wed, 22 Apr.One-way flight with Bangkok Airways.Outbound indirect flight with Bangkok Airways, departs from Chiang Mai on Wed, 22 Apr, arriving in Samui International.Price includes taxes and charges.From R 1,585, select.

Koh Samui.R 1,589 per passenger.Departing Tue, 12 May.One-way flight with Bangkok Airways.Outbound direct flight with Bangkok Airways departs from Chiang Mai on Tue, 12 May, arriving in Samui International.Price includes taxes and charges.From R 1,589, select.

Koh Samui.R 1,590 per passenger.Departing Wed, 24 Sep.One-way flight with Bangkok Airways.Outbound indirect flight with Bangkok Airways, departs from Chiang Mai on Wed, 24 Sep, arriving in Samui International.Price includes taxes and charges.From R 1,590, select.

Koh Samui.R 1,590 per passenger.Departing Tue, 21 Oct.One-way flight with Bangkok Airways.Outbound indirect flight with Bangkok Airways, departs from Chiang Mai on Tue, 21 Oct, arriving in Samui International.Price includes taxes and charges.From R 1,590, select.

Koh Samui.R 1,597 per passenger.Departing Wed, 26 Nov.One-way flight with Bangkok Airways.Outbound indirect flight with Bangkok Airways, departs from Chiang Mai on Wed, 26 Nov, arriving in Samui International.Price includes taxes and charges.From R 1,597, select.

Koh Samui.R 1,660 per passenger.Departing Mon, 9 Mar.One-way flight with Bangkok Airways.Outbound indirect flight with Bangkok Airways, departs from Chiang Mai on Mon, 9 Mar, arriving in Samui International.Price includes taxes and charges.From R 1,660, select.

Koh Samui.R 1,759 per passenger.Departing Thu, 26 Feb.One-way flight with Thai VietJet Air.Outbound indirect flight with Thai VietJet Air, departs from Chiang Mai on Thu, 26 Feb, arriving in Samui International.Price includes taxes and charges.From R 1,759, select.

Koh Samui.R 1,864 per passenger.Departing Sat, 30 Aug.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Sat, 30 Aug, arriving in Samui International.Price includes taxes and charges.From R 1,864, select.

Find the cheapest month to fly from Chiang Mai to Samui International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chiang Mai to Samui International flights are currently cheapest in April.

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Direct flights from Chiang Mai to Samui International

Chiang Mai to Samui International: Alternative routes

Compare routes from Chiang Mai to Koh Samui below. You may find an airport to fly into that's cheaper, faster, or easier than Samui International.

Chiang Mai to Koh Samui: Flight information

The things to know before you go.

Cheapest flight found	R 1,585
Cheapest month to fly	April
Average flight time	1 hr, 45 mins
Most popular airline	Bangkok Airways
Average flights per week	43

Finding cheap flights from Chiang Mai to Samui International: Frequently asked questions

How much are return flights from Chiang Mai to Samui International?

The best price we found for a return flight from Chiang Mai to Samui International is R 3,230. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Chiang Mai to Samui International?

1 hour and 45 minutes is the average flight time from Chiang Mai to Samui International.

Which airlines fly direct from Chiang Mai to Samui International?

Bangkok Airways, Turkish Airlines and Thai Airways fly direct from Chiang Mai to Samui International.

How many flights are there a week from Chiang Mai to Samui International?

As of June 2025, there are 43 flights per week flying from Chiang Mai to Samui International.

When is the cheapest time to fly from Chiang Mai to Samui International?

The cheapest month to fly from Chiang Mai to Samui International is usually June 2025.

Which upcoming date is cheapest to fly from Chiang Mai Airport to Samui International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chiang Mai Airport to Samui International Airport on Wednesday, 24 September 2025.

Can I get a direct flight from Chiang Mai Airport to Samui International Airport?

Yes – the average flight time is 1 hour and 45 minutes.

How can I find the best flight deal to Samui International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Samui International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Koh Samui?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Koh Samui is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Chiang Mai Airport to Samui International with?

Currently, Bangkok Airways offers the cheapest flight tickets to Samui International.

Flying from Chiang Mai International Airport (CNX) to Koh Samui Airport (USM): what you need to know

Around 1 hour 45 minutes is how long you can expect to be in the air on a direct flight from Chiang Mai International Airport to Koh Samui Airport.
Choose from 11 weekly Chiang Mai International Airport to Koh Samui Airport flights. The 09:15 departure with Bangkok Airways is the earliest flight you can take. Bangkok Airways operates the latest service of the day at 14:35.
Leave enough time to catch your CNX to USM flight. As a general rule, arrive at least two hours before international departures and an hour ahead for domestic flights.
Be prepared for longer queues in popular months such as August. Arriving up to four hours ahead of international flights and two hours for domestic departures will help ensure a smooth travel experience.
Bangkok Airways is your gateway to exploring Koh Samui (and perhaps some other great corners of Thailand!). Browse the direct flights from Chiang Mai International Airport to Koh Samui Airport offered by this popular carrier.
Bangkok Airways is the airline most travellers choose to fly with on this route.
With 76.27% of its services arriving as scheduled, Bangkok Airways is the most punctual carrier operating CNX to USM flights.
We make it a cinch to book a flight with a stopover. To see all your options for tickets from Chiang Mai International Airport to Koh Samui Airport, uncheck 'Direct flights only.' Then, choose a flight that has a stop long enough to explore your chosen city. Top stopovers between CNX and USM include:
- Suvarnabhumi Airport
- Don Mueang International Airport
- Phuket International Airport

How to find the cheapest flights from Chiang Mai International Airport (CNX) to Koh Samui Airport (USM)

The lowest price we've found for a one-way Chiang Mai International Airport to Koh Samui Airport flight is R 1,585. A return plane ticket is currently R 3,230. Depending on the availability when you book, these fares could change.
Score cheap tickets from CNX to USM by booking seven months ahead. Based on our research, that's the sweet spot for landing a bargain.
Schedule your trip for June. That's the cheapest month for flights from Chiang Mai International Airport to Koh Samui Airport. If you're flexible on when you fly, use the 'Whole month' tool to see the lowest price across each month.
Cut down on the time spent looking for cheap flights from CNX to USM by creating a Price Alert. You'll receive an email or notification on the app when a new discounted fare appears.
Pick your preferred departure and arrival times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Chiang Mai International Airport to Koh Samui Airport.

Handy information about Chiang Mai International Airport (CNX)

76.37% of flights that take off from Chiang Mai International Airport make it to their destination on time.
To get to Chiang Mai International Airport from central Chiang Mai, it takes about 10 minutes if you're planning to drive. This depends on traffic though. It's approximately 5 kilometres from the airport to the city centre.
Expect a trip time of about 25 minutes when using public transport.
Looking for a convenient hotel near CNX? If you've booked an early flight from Chiang Mai International Airport to Koh Samui Airport, these accommodation options will have you moments from your departure lounge:

Arriving at Koh Samui Airport (USM)

If you're getting in on a late Chiang Mai International Airport to Koh Samui Airport flight, few things top the convenience of being close to the terminal. Pick up your bags from the carousel and then be resting shortly after at one of these options near USM:
Grab a Koh Samui Airport rental car and explore Koh Samui and beyond with your own wheels. Asap car hire, Hertz and Drive Car Hire are top outlets you can book with here.
Reserving your ride from Koh Samui Airport around four weeks in advance can help you secure the lowest rate.

Getting from Koh Samui Airport (USM) to central Koh Samui

Koh Samui Airport to central Koh Samui is about 3 kilometres. Journey times may vary based on traffic conditions and the time of day, so checking a navigation app for live updates is always a good idea.

When to fly to Koh Samui Airport (USM)

The quietest month for a flight from Chiang Mai International Airport to Koh Samui Airport is February, while July is the busiest. Choose the best time to visit Koh Samui based on whether you prefer a more relaxed vibe or a faster pace.

Explore more of Thailand

You've visited Koh Samui, now it's time to explore other corners of Thailand. Travel about 467 kilometres north to Bangkok to tick off its must-visit sights. From Grand Palace to Wat Arun and Wat Phra Kaew, your itinerary will be busy.
Chon Buri is another standout destination in Thailand and is around 434 kilometres north of Koh Samui. No trip is complete without dropping by Wat Ton Son, Forest and Phra Phutthasihing Hall.