How far is Siem Reap from Roi Et?

The distance between Roi Et (Roi Et Airport) and Siem Reap (Siem Reap–Angkor International Airport) is 191 miles / 308 kilometers / 166 nautical miles.

The driving distance from Roi Et (ROI) to Siem Reap (SAI) is 285 miles / 459 kilometers, and travel time by car is about 7 hours 3 minutes.

Distance from Roi Et to Siem Reap

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

Vincenty's formula (applied above)

• 191.280 miles
• 307.836 kilometers
• 166.218 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

• 192.199 miles
• 309.315 kilometers
• 167.017 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 Roi Et to Siem Reap?

The estimated flight time from Roi Et Airport to Siem Reap–Angkor International Airport is 51 minutes.

What is the time difference between Roi Et and Siem Reap?

There is no time difference between Roi Et and Siem Reap.

Flight carbon footprint between Roi Et Airport (ROI) and Siem Reap–Angkor International Airport (SAI)

On average, flying from Roi Et to Siem Reap generates about 53 kg of CO2 per passenger, and 53 kilograms equals 117 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Roi Et to Siem Reap

See the map of the shortest flight path between Roi Et Airport (ROI) and Siem Reap–Angkor International Airport (SAI).

Airport information

Origin	Roi Et Airport
City:	Roi Et
Country:	Thailand
IATA Code:	ROI
ICAO Code:	VTUV
Coordinates:	16°7′0″N, 103°46′26″E

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