₩261,300 Cheap Flights from Chiang Mai (CNX) to Samui Intl. Airport (USM)

View ₩261,300 flight on Tue, Sep 16, 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 ₩261,300 for one-way flights and ₩578,800 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Thu, Oct 16 - Mon, Oct 20
CNX
Chiang Mai
USM
Koh Samui
₩578,800 Roundtrip, found 5 days ago
₩578,800
Roundtrip
found 5 days ago
Select Bangkok Airways flight, departing Thu, Oct 16 from Chiang Mai to Koh Samui, returning Mon, Oct 20, priced at ₩578,800 found 5 days ago
Bangkok Airways
Thu, Oct 16 - Mon, Oct 20
CNX
Chiang Mai
USM
Koh Samui
₩592,700 Roundtrip, found 5 days ago
₩592,700
Roundtrip
found 5 days ago
Select Bangkok Airways flight, departing Thu, Oct 16 from Chiang Mai to Koh Samui, returning Mon, Oct 20, priced at ₩592,700 found 5 days ago
Bangkok Airways
Thu, Dec 11 - Sat, Dec 27
CNX
Chiang Mai
USM
Koh Samui
₩595,200 Roundtrip, found 20 hours ago
₩595,200
Roundtrip
found 20 hours ago
Select Bangkok Airways flight, departing Thu, Dec 11 from Chiang Mai to Koh Samui, returning Sat, Dec 27, priced at ₩595,200 found 20 hours ago
Bangkok Airways
Fri, Oct 3 - Sun, Oct 5
CNX
Chiang Mai
USM
Koh Samui
₩596,900 Roundtrip, found 6 days ago
₩596,900
Roundtrip
found 6 days ago
Select Bangkok Airways flight, departing Fri, Oct 3 from Chiang Mai to Koh Samui, returning Sun, Oct 5, priced at ₩596,900 found 6 days ago
Bangkok Airways
Thu, Oct 16 - Mon, Oct 20
CNX
Chiang Mai
USM
Koh Samui
₩598,300 Roundtrip, found 5 days ago
₩598,300
Roundtrip
found 5 days ago
Select Bangkok Airways flight, departing Thu, Oct 16 from Chiang Mai to Koh Samui, returning Mon, Oct 20, priced at ₩598,300 found 5 days ago
Bangkok Airways
Thu, Dec 11 - Sat, Dec 27
CNX
Chiang Mai
USM
Koh Samui
₩600,800 Roundtrip, found 20 hours ago
₩600,800
Roundtrip
found 20 hours ago
Select Bangkok Airways flight, departing Thu, Dec 11 from Chiang Mai to Koh Samui, returning Sat, Dec 27, priced at ₩600,800 found 20 hours ago
Bangkok Airways
Fri, Oct 3 - Sun, Oct 5
CNX
Chiang Mai
USM
Koh Samui
₩602,500 Roundtrip, found 6 days ago
₩602,500
Roundtrip
found 6 days ago
Select Bangkok Airways flight, departing Fri, Oct 3 from Chiang Mai to Koh Samui, returning Sun, Oct 5, priced at ₩602,500 found 6 days ago
Bangkok Airways
Thu, Oct 16 - Mon, Oct 20
CNX
Chiang Mai
USM
Koh Samui
₩606,500 Roundtrip, found 5 days ago
₩606,500
Roundtrip
found 5 days ago
Select Bangkok Airways flight, departing Thu, Oct 16 from Chiang Mai to Koh Samui, returning Mon, Oct 20, priced at ₩606,500 found 5 days ago
Bangkok Airways
Fri, Oct 3 - Sun, Oct 5
CNX
Chiang Mai
USM
Koh Samui
₩610,900 Roundtrip, found 6 days ago
₩610,900
Roundtrip
found 6 days ago
Select Bangkok Airways flight, departing Fri, Oct 3 from Chiang Mai to Koh Samui, returning Sun, Oct 5, priced at ₩610,900 found 6 days ago
Bangkok Airways
Thu, Oct 16 - Mon, Oct 20
CNX
Chiang Mai
USM
Koh Samui
₩612,100 Roundtrip, found 5 days ago
₩612,100
Roundtrip
found 5 days ago
Select Bangkok Airways flight, departing Thu, Oct 16 from Chiang Mai to Koh Samui, returning Mon, Oct 20, priced at ₩612,100 found 5 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 ₩253,976 - ₩588,325 per traveler.

Graph displaying average flight prices per month

Flights from Chiang Mai (CNX) to Samui Intl. Airport (USM)
Origin airport
Chiang Mai Intl.
Destination airport
Samui Intl. Airport
Airlines serving
Bangkok Airways
Roundtrip price
₩578,800
Distance
1025 km
Average flight time
1 hour 45 mins

Chiang Mai to Koh Samui Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Chiang Mai to Koh Samui will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Koh Samui.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with CNX to USM flights that won’t make your bank account wince. Ready to temporarily leave behind Chiang Mai for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to USM with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

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 ₩578,800. 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.

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