How far is Roi Et from Udon Thani?

The distance between Udon Thani (Udon Thani International Airport) and Roi Et (Roi Et Airport) is 109 miles / 175 kilometers / 95 nautical miles.

The driving distance from Udon Thani (UTH) to Roi Et (ROI) is 156 miles / 251 kilometers, and travel time by car is about 3 hours 24 minutes.

Distance from Udon Thani to Roi Et

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

Vincenty's formula (applied above)

• 109.038 miles
• 175.480 kilometers
• 94.751 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

• 109.318 miles
• 175.930 kilometers
• 94.994 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 Udon Thani to Roi Et?

The estimated flight time from Udon Thani International Airport to Roi Et Airport is 42 minutes.

What is the time difference between Udon Thani and Roi Et?

There is no time difference between Udon Thani and Roi Et.

Flight carbon footprint between Udon Thani International Airport (UTH) and Roi Et Airport (ROI)

On average, flying from Udon Thani to Roi Et generates about 41 kg of CO2 per passenger, and 41 kilograms equals 91 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Udon Thani to Roi Et

See the map of the shortest flight path between Udon Thani International Airport (UTH) and Roi Et Airport (ROI).

Airport information

Origin	Udon Thani International Airport
City:	Udon Thani
Country:	Thailand
IATA Code:	UTH
ICAO Code:	VTUD
Coordinates:	17°23′11″N, 102°47′16″E

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