How far is Siem Reap from London?

The distance between London (London Heathrow Airport) and Siem Reap (Siem Reap–Angkor International Airport) is 6117 miles / 9845 kilometers / 5316 nautical miles.

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)

• 6117.479 miles
• 9845.129 kilometers
• 5315.944 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

• 6110.513 miles
• 9833.917 kilometers
• 5309.890 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–Angkor International Airport is 12 hours and 4 minutes.

What is the time difference between London and Siem Reap?

The time difference between London and Siem Reap is 6 hours. Siem Reap is 6 hours ahead of London.

Flight carbon footprint between London Heathrow Airport (LHR) and Siem Reap–Angkor International Airport (SAI)

On average, flying from London to Siem Reap generates about 733 kg of CO2 per passenger, and 733 kilograms equals 1 615 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–Angkor International Airport (SAI).

Airport information

Origin	London Heathrow Airport
City:	London
Country:	United Kingdom
IATA Code:	LHR
ICAO Code:	EGLL
Coordinates:	51°28′14″N, 0°27′42″W

Destination	Siem Reap–Angkor International Airport
City:	Siem Reap
Country:	Cambodia
IATA Code:	SAI
ICAO Code:	VDSA
Coordinates:	13°22′9″N, 104°13′23″E