Distance From Alliston Airport to Siem Reap International Airport

The distance from Alliston Airport () to Siem Reap International Airport (REP) is 8451 miles or 13600 kilometers or 7339 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 Alliston ( Canada ) to Siem Reap ( Cambodia )?

A one-way nonstop (direct) flight between Alliston and Siem Reap takes around 19 hours 25 minutes.

Estimated flight time from Alliston Airport, Alliston, Canada to Siem Reap International Airport, Siem Reap, Cambodia is 19 hours 25 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 • - REP

Kilometers		13600 km
Statute Miles		8451 miles
Nautical Miles		7339 nm
Avg. Time of Flight		19 hours 25 minutes

Alliston Airport to Siem Reap International Airport Flight Route Map - to REP Flight Path

Location of Alliston Airport & Siem Reap International Airport is given below.
Click the map to view Alliston to Siem Reap nonstop flight path and travel direction.

Click to see flight route on Google Map between Alliston, Canada and Siem Reap, Cambodia. .

Nonstop flight route between Alliston, Canada and Siem Reap, Cambodia.

Time Difference Between the Airports • - REP

Time difference between Alliston (Canada) and Siem Reap (Cambodia) is 12 Hours.
Siem Reap time is 12 Hours ahead of Alliston.

Location	Local Time
Alliston (Canada)	2025-12-16, 23:08:26 EST
Siem Reap (Cambodia)	2025-12-17, 11:08:26 +07

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

Alliston Airport ( / CNY4) Alliston, Canada

Destination

Siem Reap International Airport (REP / VDSR) Siem Reap, Cambodia