Distance From Coolibah Airport to Siem Reap International Airport, COB - REP Distance

The distance from Coolibah Airport (COB) to Siem Reap International Airport (REP) is 2729 miles or 4392 kilometers or 2370 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 Coolibah ( Australia ) to Siem Reap ( Cambodia )?

A one-way nonstop (direct) flight between Coolibah and Siem Reap takes around 6 hours 16 minutes.

Estimated flight time from Coolibah Airport, Coolibah, Australia to Siem Reap International Airport, Siem Reap, Cambodia is 6 hours 16 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 • COB - REP

Kilometers		4392 km
Statute Miles		2729 miles
Nautical Miles		2370 nm
Avg. Time of Flight		6 hours 16 minutes

Coolibah Airport to Siem Reap International Airport Flight Route Map - COB to REP Flight Path

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

Click to see flight route on Google Map between Coolibah, Australia and Siem Reap, Cambodia. .

Nonstop flight route between Coolibah, Australia and Siem Reap, Cambodia.

Time Difference Between the Airports • COB - REP

Time difference between Coolibah (Australia) and Siem Reap (Cambodia) is 2 Hours 30 Minutes.
Siem Reap time is 2 Hours 30 Minutes behind Coolibah.

Location	Local Time
Coolibah (Australia)	2026-10-27, 17:08:50 ACST
Siem Reap (Cambodia)	2026-10-27, 14:38:50 +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

Coolibah Airport (COB / ) Coolibah, Australia

Destination

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