Distance From Sihanoukville International Airport to Buffalo Niagara International Airport, KOS - BUF Distance

The distance from Sihanoukville International Airport (KOS) to Buffalo Niagara International Airport (BUF) is 8737 miles or 14060 kilometers or 7587 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Preah Sihanouk ( Cambodia ) to Buffalo ( United States )?

A one-way nonstop (direct) flight between Preah Sihanouk and Buffalo takes around 20 hours 5 minutes.

Estimated flight time from Sihanoukville International Airport, Preah Sihanouk, Cambodia to Buffalo Niagara International Airport, Buffalo, United States is 20 hours 5 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • KOS - BUF

Kilometers		14060 km
Statute Miles		8737 miles
Nautical Miles		7587 nm
Avg. Time of Flight		20 hours 5 minutes

Sihanoukville International Airport to Buffalo Niagara International Airport Flight Route Map - KOS to BUF Flight Path

Location of Sihanoukville International Airport & Buffalo Niagara International Airport is given below.
Click the map to view Preah Sihanouk to Buffalo nonstop flight path and travel direction.

Click to see flight route on Google Map between Preah Sihanouk, Cambodia and Buffalo, United States. .

Nonstop flight route between Preah Sihanouk, Cambodia and Buffalo, United States.

Time Difference Between the Airports • KOS - BUF

Time difference between Preah Sihanouk (Cambodia) and Buffalo (United States) is 12 Hours.
Buffalo time is 12 Hours behind Preah Sihanouk.

Location	Local Time
Preah Sihanouk (Cambodia)	2025-12-05, 19:57:04 +07
Buffalo (United States)	2025-12-05, 07:57:04 EST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Sihanoukville International Airport (KOS / VDSV) Preah Sihanouk, Cambodia

Destination

Buffalo Niagara International Airport (BUF / KBUF) Buffalo, United States