S$265 Cheap Flights from Chiang Mai to Samui Intl. Airport

View S$265 flight on Fri, 17 Oct, 2025Opens in a new window

Popular airlines from Chiang Mai Intl. Airport (CNX) to Samui Intl. Airport (USM)

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Cheap Flights from Chiang Mai to Samui Intl. Airport (CNX-USM)

Prices were available within the past 7 days and start at S$265 for one-way flights and S$547 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Fri, 29 Aug - Sun, 31 Aug
CNX
Chiang Mai
USM
Koh Samui
S$547 Return, found 4 days ago
S$547
Return
found 4 days ago
Select Bangkok Airways flight, departing Fri, 29 Aug from Chiang Mai to Koh Samui, returning Sun, 31 Aug, priced at S$547 found 4 days ago
Bangkok Airways
Thu, 11 Sep - Sun, 14 Sep
CNX
Chiang Mai
USM
Koh Samui
S$551 Return, found 1 day ago
S$551
Return
found 1 day ago
Select Bangkok Airways flight, departing Thu, 11 Sep from Chiang Mai to Koh Samui, returning Sun, 14 Sep, priced at S$551 found 1 day ago
Bangkok Airways
Thu, 28 Aug - Sun, 31 Aug
CNX
Chiang Mai
USM
Koh Samui
S$552 Return, found 2 days ago
S$552
Return
found 2 days ago
Select Bangkok Airways flight, departing Thu, 28 Aug from Chiang Mai to Koh Samui, returning Sun, 31 Aug, priced at S$552 found 2 days ago
Bangkok Airways
Thu, 11 Sep - Sun, 14 Sep
CNX
Chiang Mai
USM
Koh Samui
S$556 Return, found 1 day ago
S$556
Return
found 1 day ago
Select Bangkok Airways flight, departing Thu, 11 Sep from Chiang Mai to Koh Samui, returning Sun, 14 Sep, priced at S$556 found 1 day ago
Bangkok Airways
Thu, 28 Aug - Sun, 31 Aug
CNX
Chiang Mai
USM
Koh Samui
S$557 Return, found 2 days ago
S$557
Return
found 2 days ago
Select Bangkok Airways flight, departing Thu, 28 Aug from Chiang Mai to Koh Samui, returning Sun, 31 Aug, priced at S$557 found 2 days ago
Bangkok Airways
Thu, 11 Sep - Sun, 14 Sep
CNX
Chiang Mai
USM
Koh Samui
S$564 Return, found 1 day ago
S$564
Return
found 1 day ago
Select Bangkok Airways flight, departing Thu, 11 Sep from Chiang Mai to Koh Samui, returning Sun, 14 Sep, priced at S$564 found 1 day ago
Bangkok Airways
Thu, 11 Sep - Sun, 14 Sep
CNX
Chiang Mai
USM
Koh Samui
S$567 Return, found 1 day ago
S$567
Return
found 1 day ago
Select Bangkok Airways flight, departing Thu, 11 Sep from Chiang Mai to Koh Samui, returning Sun, 14 Sep, priced at S$567 found 1 day ago
Bangkok Airways
Thu, 28 Aug - Sun, 31 Aug
CNX
Chiang Mai
USM
Koh Samui
S$568 Return, found 2 days ago
S$568
Return
found 2 days ago
Select Bangkok Airways flight, departing Thu, 28 Aug from Chiang Mai to Koh Samui, returning Sun, 31 Aug, priced at S$568 found 2 days ago
Bangkok Airways
Thu, 28 Aug - Sun, 31 Aug
CNX
Chiang Mai
USM
Koh Samui
S$569 Return, found 4 days ago
S$569
Return
found 4 days ago
Select Bangkok Airways flight, departing Thu, 28 Aug from Chiang Mai to Koh Samui, returning Sun, 31 Aug, priced at S$569 found 4 days ago
Bangkok Airways
Thu, 11 Sep - Sun, 14 Sep
CNX
Chiang Mai
USM
Koh Samui
S$574 Return, found 1 day ago
S$574
Return
found 1 day ago
Select Bangkok Airways flight, departing Thu, 11 Sep from Chiang Mai to Koh Samui, returning Sun, 14 Sep, priced at S$574 found 1 day ago

Find the cheapest month to fly from Chiang Mai (CNX) to Koh Samui (USM)

September is typically the cheapest month to fly

From S$235 - S$538 per traveller.

Graph displaying average flight prices per month

Chiang Mai to Samui Intl. Airport route information
Origin airport
Chiang Mai Intl.
Destination airport
Samui Intl. Airport
Airlines serving
Bangkok Airways
Return price
S$547
Distance
1025 km
Average flight time
1 hour 45 mins

Frequently asked questions

How much is a flight from Chiang Mai Airport to Ko Samui Airport?
Pack your bags, because round-trip flights between CNX and USM start from S$547. That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book today to lock in the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Chiang Mai Airport to Ko Samui Airport (USM)?
The majority of flights can be cancelled online, but each airline has its own set of terms and conditions. If you do need to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from Chiang Mai Intl. Airport (CNX) to USM that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Chiang Mai Intl. Airport (CNX) to USM flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Chiang Mai Intl. Airport (CNX) to USM?
It's just 1,050 kilometres between Chiang Mai and Koh Samui. Chances are you'll spend more time travelling to and from the airport than you will actually flying!
Which airlines fly direct from Chiang Mai Intl. Airport (CNX) to Ko Samui Airport?
Check out the airfares with Bangkok Airways (PG) if you want to travel straight from CNX to Ko Samui Airport. This carrier offers 30 flights every month, so you're sure to find one that suits your schedule.
Are CNX to Ko Samui Airport flight tickets cheaper when they're purchased at the last minute?
Flight prices are constantly going up and down, so there are no guarantees. While last-minute flight deals between Chiang Mai Airport and Samui Airport are possible, it's also a good idea to keep track of prices well before you fly. In fact, some carriers publish their prices up to a year before the departure date. Expedia is continuously updating the biggest airfare bargains around, so check back often and be ready to grab your seat when the price is low.

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