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How far is Ha Long from Siem Reap?

The distance between Siem Reap (Siem Reap International Airport) and Ha Long (Van Don International Airport) is 581 miles / 935 kilometers / 505 nautical miles.

The driving distance from Siem Reap (REP) to Ha Long (VDO) is 863 miles / 1389 kilometers, and travel time by car is about 18 hours 38 minutes.

Siem Reap International Airport – Van Don International Airport

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581
Miles
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935
Kilometers
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505
Nautical miles

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Distance from Siem Reap to Ha Long

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

Vincenty's formula (applied above)
  • 580.876 miles
  • 934.829 kilometers
  • 504.767 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
  • 583.018 miles
  • 938.277 kilometers
  • 506.629 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 Siem Reap to Ha Long?

The estimated flight time from Siem Reap International Airport to Van Don International Airport is 1 hour and 35 minutes.

What is the time difference between Siem Reap and Ha Long?

There is no time difference between Siem Reap and Ha Long.

Flight carbon footprint between Siem Reap International Airport (REP) and Van Don International Airport (VDO)

On average, flying from Siem Reap to Ha Long generates about 110 kg of CO2 per passenger, and 110 kilograms equals 243 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Siem Reap to Ha Long

See the map of the shortest flight path between Siem Reap International Airport (REP) and Van Don International Airport (VDO).

Airport information

Origin 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
Destination Van Don International Airport
City: Ha Long
Country: Vietnam Flag of Vietnam
IATA Code: VDO
ICAO Code: VVVD
Coordinates: 21°7′4″N, 107°24′51″E