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How far is Siem Reap from Vientiane?

The distance between Vientiane (Wattay International Airport) and Siem Reap (Siem Reap International Airport) is 326 miles / 524 kilometers / 283 nautical miles.

The driving distance from Vientiane (VTE) to Siem Reap (REP) is 491 miles / 790 kilometers, and travel time by car is about 9 hours 42 minutes.

Wattay International Airport – Siem Reap International Airport

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326
Miles
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524
Kilometers
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283
Nautical miles

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Distance from Vientiane to Siem Reap

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

Vincenty's formula (applied above)
  • 325.568 miles
  • 523.950 kilometers
  • 282.911 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
  • 327.021 miles
  • 526.290 kilometers
  • 284.174 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 Vientiane to Siem Reap?

The estimated flight time from Wattay International Airport to Siem Reap International Airport is 1 hour and 6 minutes.

What is the time difference between Vientiane and Siem Reap?

There is no time difference between Vientiane and Siem Reap.

Flight carbon footprint between Wattay International Airport (VTE) and Siem Reap International Airport (REP)

On average, flying from Vientiane to Siem Reap generates about 73 kg of CO2 per passenger, and 73 kilograms equals 161 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Vientiane to Siem Reap

See the map of the shortest flight path between Wattay International Airport (VTE) and Siem Reap International Airport (REP).

Airport information

Origin Wattay International Airport
City: Vientiane
Country: Laos Flag of Laos
IATA Code: VTE
ICAO Code: VLVT
Coordinates: 17°59′17″N, 102°33′46″E
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