Direct (nonstop) flights from Chiang Mai to Koh Samui
1 airline flys nonstop from Chiang Mai Intl (CNX) to Samui (USM). It's 638 miles (1,026 km), about 1h 45m in the air. Operated by Bangkok Airways.
Bangkok Airways
Route data last updated: May 29, 2026
Airlines with non-stop flights
PG
Bangkok Airways
Alternative Routes
Other ways to fly from Chiang Mai to Koh Samui with one stop · direct emits 118 kg CO₂ per passenger
Looking for the return flight?
USM → CNX: Flights from Koh Samui to Chiang MaiOther direct flights from Chiang Mai
Direct flights from Koh Samui (USM)
Frequently Asked Questions
How long is the direct flight from Chiang Mai to Koh Samui?
A nonstop flight from Chiang Mai (CNX) to Koh Samui (USM) takes approximately 1 hours and 45 minutes. The distance is 638 miles (1,026 km).
Which airlines fly nonstop from Chiang Mai to Koh Samui?
Just Bangkok Airways.
Is there a nonstop flight from Chiang Mai to Koh Samui?
Yes. 1 airline: Bangkok Airways.
How far is Chiang Mai from Koh Samui?
The flight distance from Chiang Mai to Koh Samui is 638 miles (1,026 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as the length of Italy.
What type of aircraft flies from Chiang Mai to Koh Samui?
At 1h 45m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Chiang Mai to Koh Samui?
Roughly 118 kg CO2 per passenger one-way. That's about the same as driving 590 km.
Is the return flight from Koh Samui to Chiang Mai also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Chiang Mai to Koh Samui?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Chiang Mai Intl for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.