Direct (nonstop) flights from Siem Reap to Sihanoukville
1 airline flys nonstop from Siem Reap-Ankor International Airport (SAI) to Sihanoukville (KOS). It's 195 miles (314 km), about 1h 10m in the air. Operated by Air Cambodia.
Air Cambodia
Route data last updated: May 29, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Siem Reap to Sihanoukville with one stop · direct emits 36 kg CO₂ per passenger
Looking for the return flight?
KOS → SAI: Flights from Sihanoukville to Siem ReapOther direct flights from Siem Reap
Direct flights from Sihanoukville (KOS)
Frequently Asked Questions
How long is the direct flight from Siem Reap to Sihanoukville?
A nonstop flight from Siem Reap (SAI) to Sihanoukville (KOS) takes approximately 1 hours and 10 minutes. The distance is 195 miles (314 km).
Which airlines fly nonstop from Siem Reap to Sihanoukville?
Just Air Cambodia.
Is there a nonstop flight from Siem Reap to Sihanoukville?
Yes. 1 airline: Air Cambodia.
How far is Siem Reap from Sihanoukville?
The flight distance from Siem Reap to Sihanoukville is 195 miles (314 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Washington DC.
What type of aircraft flies from Siem Reap to Sihanoukville?
At 1h 10m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Siem Reap to Sihanoukville?
Roughly 36 kg CO2 per passenger one-way. That's about the same as driving 180 km.
Is the return flight from Sihanoukville to Siem Reap 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 Siem Reap to Sihanoukville?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. For long-haul, booking 2-3 months out tends to help. Use "Check Prices" above to compare.
How early should I arrive at Siem Reap-Ankor International Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.