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How far is Siem Reap from London?

The distance between London (London Heathrow Airport) and Siem Reap (Siem Reap International Airport) is 6099 miles / 9815 kilometers / 5299 nautical miles.

London Heathrow Airport – Siem Reap International Airport

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6099
Miles
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9815
Kilometers
Distance arrow
5299
Nautical miles

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Distance from London to Siem Reap

There are several ways to calculate the distance from London to Siem Reap. Here are two standard methods:

Vincenty's formula (applied above)
  • 6098.532 miles
  • 9814.636 kilometers
  • 5299.480 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula
  • 6091.594 miles
  • 9803.470 kilometers
  • 5293.450 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

How long does it take to fly from London to Siem Reap?

The estimated flight time from London Heathrow Airport to Siem Reap International Airport is 12 hours and 2 minutes.

Flight carbon footprint between London Heathrow Airport (LHR) and Siem Reap International Airport (REP)

On average, flying from London to Siem Reap generates about 730 kg of CO2 per passenger, and 730 kilograms equals 1 609 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from London to Siem Reap

See the map of the shortest flight path between London Heathrow Airport (LHR) and Siem Reap International Airport (REP).

Airport information

Origin London Heathrow Airport
City: London
Country: United Kingdom Flag of United Kingdom
IATA Code: LHR
ICAO Code: EGLL
Coordinates: 51°28′14″N, 0°27′42″W
Destination Siem Reap International Airport
City: Siem Reap
Country: Cambodia Flag of Cambodia
IATA Code: REP
ICAO Code: VDSR
Coordinates: 13°24′38″N, 103°48′46″E