CA $298 Cheap Flights from Chiang Mai (CNX) to Samui Intl. Airport (USM)

View CA $298 flight on Sat, Jan. 24, 2026Opens 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 (CNX) to Samui Intl. Airport (USM)

Prices were available within the past 7 days and start at CA $298 for one-way flights and CA $589 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Thu, Sep. 11 - Sun, Sep. 14
CNX
Chiang Mai
USM
Koh Samui
CA $589 Roundtrip, found 17 hours ago
CA $589
Roundtrip
found 17 hours ago
Select Bangkok Airways flight, departing Thu, Sep. 11 from Chiang Mai to Koh Samui, returning Sun, Sep. 14, priced at CA $589 found 17 hours ago
Bangkok Airways
Sat, Oct. 11 - Wed, Oct. 15
CNX
Chiang Mai
USM
Koh Samui
CA $590 Roundtrip, found 1 hour ago
CA $590
Roundtrip
found 1 hour ago
Select Bangkok Airways flight, departing Sat, Oct. 11 from Chiang Mai to Koh Samui, returning Wed, Oct. 15, priced at CA $590 found 1 hour ago
Bangkok Airways
Thu, Sep. 11 - Sun, Sep. 14
CNX
Chiang Mai
USM
Koh Samui
CA $594 Roundtrip, found 17 hours ago
CA $594
Roundtrip
found 17 hours ago
Select Bangkok Airways flight, departing Thu, Sep. 11 from Chiang Mai to Koh Samui, returning Sun, Sep. 14, priced at CA $594 found 17 hours ago
Bangkok Airways
Sat, Oct. 11 - Wed, Oct. 15
CNX
Chiang Mai
USM
Koh Samui
CA $595 Roundtrip, found 1 hour ago
CA $595
Roundtrip
found 1 hour ago
Select Bangkok Airways flight, departing Sat, Oct. 11 from Chiang Mai to Koh Samui, returning Wed, Oct. 15, priced at CA $595 found 1 hour ago
Bangkok Airways
Thu, Sep. 11 - Sun, Sep. 14
CNX
Chiang Mai
USM
Koh Samui
CA $603 Roundtrip, found 17 hours ago
CA $603
Roundtrip
found 17 hours ago
Select Bangkok Airways flight, departing Thu, Sep. 11 from Chiang Mai to Koh Samui, returning Sun, Sep. 14, priced at CA $603 found 17 hours ago
Bangkok Airways
Sat, Oct. 11 - Wed, Oct. 15
CNX
Chiang Mai
USM
Koh Samui
CA $604 Roundtrip, found 1 hour ago
CA $604
Roundtrip
found 1 hour ago
Select Bangkok Airways flight, departing Sat, Oct. 11 from Chiang Mai to Koh Samui, returning Wed, Oct. 15, priced at CA $604 found 1 hour ago
Bangkok Airways
Thu, Sep. 11 - Sun, Sep. 14
CNX
Chiang Mai
USM
Koh Samui
CA $608 Roundtrip, found 17 hours ago
CA $608
Roundtrip
found 17 hours ago
Select Bangkok Airways flight, departing Thu, Sep. 11 from Chiang Mai to Koh Samui, returning Sun, Sep. 14, priced at CA $608 found 17 hours ago
Bangkok Airways
Sat, Oct. 11 - Wed, Oct. 15
CNX
Chiang Mai
USM
Koh Samui
CA $609 Roundtrip, found 1 hour ago
CA $609
Roundtrip
found 1 hour ago
Select Bangkok Airways flight, departing Sat, Oct. 11 from Chiang Mai to Koh Samui, returning Wed, Oct. 15, priced at CA $609 found 1 hour ago
Bangkok Airways
Thu, Sep. 11 - Sun, Sep. 14
CNX
Chiang Mai
USM
Koh Samui
CA $614 Roundtrip, found 17 hours ago
CA $614
Roundtrip
found 17 hours ago
Select Bangkok Airways flight, departing Thu, Sep. 11 from Chiang Mai to Koh Samui, returning Sun, Sep. 14, priced at CA $614 found 17 hours ago
Bangkok Airways
Sat, Oct. 11 - Wed, Oct. 15
CNX
Chiang Mai
USM
Koh Samui
CA $615 Roundtrip, found 1 hour ago
CA $615
Roundtrip
found 1 hour ago
Select Bangkok Airways flight, departing Sat, Oct. 11 from Chiang Mai to Koh Samui, returning Wed, Oct. 15, priced at CA $615 found 1 hour ago

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

September is typically the cheapest month to fly

From CA $251 - CA $575 per traveller.

Graph displaying average flight prices per month

Flight from Chiang Mai to Samui Intl. Airport (CNX - USM) route information
Origin airport
Chiang Mai Intl.
Destination airport
Samui Intl. Airport
Airlines serving
Bangkok Airways
Roundtrip price
CA $588
Distance
1025 km
Average flight time
1 hour 45 mins

Chiang Mai to Koh Samui Flights

The easy way to book your flights from Chiang Mai to Samui Intl. Airport 

With Expedia, it’s simple to find and book flights to Samui Intl. Airport from Chiang Mai whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are EVA Air, Qatar Airways, Thai Airways International, Etihad Airways, China Airlines, Turkish Airlines, Bangkok Airways nonstop flights to Samui Intl. Airport, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Chiang Mai to Samui Intl. Airport today, tomorrow, or this week.  

 

Save dollars with cheap flights from Chiang Mai Intl., CNX to Samui Intl. Airport, USM 

Sort your search results by price to find great deals on your flight from Chiang Mai to Samui Intl. Airport—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Samui Intl. Airport from Chiang Mai currently is just CA $589 rising to CA $615.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Samui Intl. Airport  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Samui Intl. Airport from Chiang Mai 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Samui Intl. Airport with Expedia today.

Frequently asked questions

How much is a flight from CNX to USM?
Based on fares listed within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from CNX to Ko Samui Airport start from CA $589. Make your booking ASAP to score the best price for your big adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from CNX to USM?
When it comes to cancellation fees, every airline has different terms and conditions. If you decide to cancel your trip, visit our Customer Service Portal.
How do I find cheap flights from Chiang Mai Intl. Airport (CNX) to Ko Samui Airport that have flexible change policies?
Flights from CNX to USM offering flexible change policies are available with many carriers. Simply use our "No change fees" filter while searching. You'll only need to pay the fare difference, without any additional fees to worry about.
How many hours is the flight from Chiang Mai Airport to Ko Samui Airport?
You may like to bring your own entertainment (like some downloaded podcasts), as it takes roughly 3 hours and 12 minutes to fly to Ko Samui Airport from Chiang Mai Intl. Airport (CNX). A good pair of noise-cancelling headphones will be useful too.
How far is the flight from Chiang Mai Airport to Ko Samui Airport?
With a flight distance of 1,050 kilometres, it's only a short hop from Chiang Mai Airport to Ko Samui Airport. It might be a quick journey, but it's still worth bringing something to read.
Which airlines fly direct from Chiang Mai Airport to USM?
Bangkok Airways (PG) will fly you from Chiang Mai Intl. Airport (CNX) to USM comfortably and reliably. Take your pick of 30 direct flights every month on this route.
Are Chiang Mai Airport to Ko Samui Airport flight tickets cheaper when they're purchased at the last minute?
Flight prices from Chiang Mai Intl. Airport (CNX) to Ko Samui Airport are available up to 12 months prior to departure on Expedia. And although you may occasionally nab a fantastic last-minute deal, it's not something you should count on. Also, booking your flights in advance means you'll have more options — and you can avoid landing the dreaded middle seat! We're constantly updating our fares to bring you the biggest bargains, so keep checking in for all the latest specials.

Explore a world of travel with Expedia

*Available to Expedia members.