Distance From Heihe Aihui Airport to Siem Reap International Airport, HEK - REP Distance

The distance from Heihe Aihui Airport (HEK) to Siem Reap International Airport (REP) is 2865 miles or 4610 kilometers or 2488 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 Heihe ( China ) to Siem Reap ( Cambodia )?

A one-way nonstop (direct) flight between Heihe and Siem Reap takes around 6 hours 35 minutes.

Estimated flight time from Heihe Aihui Airport, Heihe, China to Siem Reap International Airport, Siem Reap, Cambodia is 6 hours 35 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 • HEK - REP

Kilometers		4610 km
Statute Miles		2865 miles
Nautical Miles		2488 nm
Avg. Time of Flight		6 hours 35 minutes

Heihe Aihui Airport to Siem Reap International Airport Flight Route Map - HEK to REP Flight Path

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

Click to see flight route on Google Map between Heihe, China and Siem Reap, Cambodia. .

Nonstop flight route between Heihe, China and Siem Reap, Cambodia.

Time Difference Between the Airports • HEK - REP

Time difference between Heihe (China) and Siem Reap (Cambodia) is 1 Hours.
Siem Reap time is 1 Hours behind Heihe.

Location	Local Time
Heihe (China)	2025-12-05, 20:20:51 CST
Siem Reap (Cambodia)	2025-12-05, 19:20:51 +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

Heihe Aihui Airport (HEK / ZYHE) Heihe, China

Destination

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