Distance From Lehigh Valley Hospital Cedar Crest Heliport to Siem Reap International Airport

The distance from Lehigh Valley Hospital Cedar Crest Heliport () to Siem Reap International Airport (REP) is 8707 miles or 14013 kilometers or 7561 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 Allentown ( United States ) to Siem Reap ( Cambodia )?

A one-way nonstop (direct) flight between Allentown and Siem Reap takes around 20 hours 1 minutes.

Estimated flight time from Lehigh Valley Hospital Cedar Crest Heliport, Allentown, United States to Siem Reap International Airport, Siem Reap, Cambodia is 20 hours 1 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		14013 km
Statute Miles		8707 miles
Nautical Miles		7561 nm
Avg. Time of Flight		20 hours 1 minutes

Lehigh Valley Hospital Cedar Crest Heliport to Siem Reap International Airport Flight Route Map - to REP Flight Path

Location of Lehigh Valley Hospital Cedar Crest Heliport & Siem Reap International Airport is given below.
Click the map to view Allentown to Siem Reap nonstop flight path and travel direction.

Click to see flight route on Google Map between Allentown, United States and Siem Reap, Cambodia. .

Nonstop flight route between Allentown, United States and Siem Reap, Cambodia.

Time Difference Between the Airports • - REP

Time difference between Allentown (United States) and Siem Reap (Cambodia) is 11 Hours.
Siem Reap time is 11 Hours ahead of Allentown.

Location	Local Time
Allentown (United States)	2026-05-07, 12:02:11 EDT
Siem Reap (Cambodia)	2026-05-07, 23:02:11 +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

Lehigh Valley Hospital Cedar Crest Heliport ( / 98PN) Allentown, United States

Destination

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