Cheap Flights from Chiang Mai (CNX) to Samui Intl. Airport (USM) from HK$1,681~

View HK$1,681 flight on Tue, 21 Oct 2025Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at HK$1,681 for one-way flights and HK$3,326 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Tue, 14 Oct - Fri, 17 Oct
CNX
Chiang Mai
USM
Koh Samui
HK$3,326 Return, found 5 days ago
HK$3,326
Return
found 5 days ago
Select Bangkok Airways flight, departing Tue, 14 Oct from Chiang Mai to Koh Samui, returning Fri, 17 Oct, priced at HK$3,326 found 5 days ago
Bangkok Airways
Thu, 19 Feb - Sat, 21 Feb
CNX
Chiang Mai
USM
Koh Samui
HK$3,375 Return, found 9 hours ago
HK$3,375
Return
found 9 hours ago
Select Bangkok Airways flight, departing Thu, 19 Feb from Chiang Mai to Koh Samui, returning Sat, 21 Feb, priced at HK$3,375 found 9 hours ago
Bangkok Airways
Wed, 15 Oct - Sun, 19 Oct
CNX
Chiang Mai
USM
Koh Samui
HK$3,395 Return, found 2 days ago
HK$3,395
Return
found 2 days ago
Select Bangkok Airways flight, departing Wed, 15 Oct from Chiang Mai to Koh Samui, returning Sun, 19 Oct, priced at HK$3,395 found 2 days ago
Bangkok Airways
Tue, 14 Oct - Fri, 17 Oct
CNX
Chiang Mai
USM
Koh Samui
HK$3,406 Return, found 5 days ago
HK$3,406
Return
found 5 days ago
Select Bangkok Airways flight, departing Tue, 14 Oct from Chiang Mai to Koh Samui, returning Fri, 17 Oct, priced at HK$3,406 found 5 days ago
Bangkok Airways
Thu, 19 Feb - Sat, 21 Feb
CNX
Chiang Mai
USM
Koh Samui
HK$3,407 Return, found 9 hours ago
HK$3,407
Return
found 9 hours ago
Select Bangkok Airways flight, departing Thu, 19 Feb from Chiang Mai to Koh Samui, returning Sat, 21 Feb, priced at HK$3,407 found 9 hours ago
Bangkok Airways
Wed, 15 Oct - Sun, 19 Oct
CNX
Chiang Mai
USM
Koh Samui
HK$3,427 Return, found 2 days ago
HK$3,427
Return
found 2 days ago
Select Bangkok Airways flight, departing Wed, 15 Oct from Chiang Mai to Koh Samui, returning Sun, 19 Oct, priced at HK$3,427 found 2 days ago
Bangkok Airways
Tue, 14 Oct - Fri, 17 Oct
CNX
Chiang Mai
USM
Koh Samui
HK$3,438 Return, found 5 days ago
HK$3,438
Return
found 5 days ago
Select Bangkok Airways flight, departing Tue, 14 Oct from Chiang Mai to Koh Samui, returning Fri, 17 Oct, priced at HK$3,438 found 5 days ago
Bangkok Airways
Wed, 15 Oct - Sun, 19 Oct
CNX
Chiang Mai
USM
Koh Samui
HK$3,475 Return, found 2 days ago
HK$3,475
Return
found 2 days ago
Select Bangkok Airways flight, departing Wed, 15 Oct from Chiang Mai to Koh Samui, returning Sun, 19 Oct, priced at HK$3,475 found 2 days ago
Bangkok Airways
Sat, 13 Sep - Wed, 17 Sep
CNX
Chiang Mai
USM
Koh Samui
HK$3,486 Return, found 5 days ago
HK$3,486
Return
found 5 days ago
Select Bangkok Airways flight, departing Sat, 13 Sep from Chiang Mai to Koh Samui, returning Wed, 17 Sep, priced at HK$3,486 found 5 days ago
Bangkok Airways
Wed, 15 Oct - Sun, 19 Oct
CNX
Chiang Mai
USM
Koh Samui
HK$3,497 Return, found 2 days ago
HK$3,497
Return
found 2 days ago
Select Bangkok Airways flight, departing Wed, 15 Oct from Chiang Mai to Koh Samui, returning Sun, 19 Oct, priced at HK$3,497 found 2 days ago

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

September is typically the cheapest month to fly

From HK$1,434 - HK$3,323 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
HK$3,326
Distance
1025 km
Average flight time
1 hour 45 mins

Flights from Chiang Mai to Koh Samui

Book cheap flights from Chiang Mai (CNX) to Koh Samui (USM) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Chiang Mai (CNX) to Koh Samui (USM) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Chiang Mai (CNX) to Koh Samui (USM) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Koh Samui flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Koh Samui and things to do in Koh Samui for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Koh Samui more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Koh Samui is HK$1,681 now!

 

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 HK$3,326. 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 canceled 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 kilometers between Chiang Mai and Koh Samui. Chances are you'll spend more time traveling 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.

Explore a world of travel with Expedia

*Available to Expedia members.