Distance From Kos Airport to Siem Reap International Airport, KGS - REP Distance

The distance from Kos Airport (KGS) to Siem Reap International Airport (REP) is 4938 miles or 7947 kilometers or 4288 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 Kos Island ( Greece ) to Siem Reap ( Cambodia )?

A one-way nonstop (direct) flight between Kos Island and Siem Reap takes around 11 hours 21 minutes.

Estimated flight time from Kos Airport, Kos Island, Greece to Siem Reap International Airport, Siem Reap, Cambodia is 11 hours 21 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 • KGS - REP

Kilometers		7947 km
Statute Miles		4938 miles
Nautical Miles		4288 nm
Avg. Time of Flight		11 hours 21 minutes

Kos Airport to Siem Reap International Airport Flight Route Map - KGS to REP Flight Path

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

Click to see flight route on Google Map between Kos Island, Greece and Siem Reap, Cambodia. .

Nonstop flight route between Kos Island, Greece and Siem Reap, Cambodia.

Time Difference Between the Airports • KGS - REP

Time difference between Kos Island (Greece) and Siem Reap (Cambodia) is 4 Hours.
Siem Reap time is 4 Hours ahead of Kos Island.

Location	Local Time
Kos Island (Greece)	2026-06-14, 15:11:32 EEST
Siem Reap (Cambodia)	2026-06-14, 19:11:32 +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

Kos Airport (KGS / LGKO) Kos Island, Greece

Destination

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