How far is Roi Et from Chiang Rai?

The distance between Chiang Rai (Chiang Rai International Airport) and Roi Et (Roi Et Airport) is 368 miles / 592 kilometers / 319 nautical miles.

The driving distance from Chiang Rai (CEI) to Roi Et (ROI) is 541 miles / 870 kilometers, and travel time by car is about 11 hours 56 minutes.

Distance from Chiang Rai to Roi Et

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

Vincenty's formula (applied above)

• 367.543 miles
• 591.503 kilometers
• 319.386 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

• 368.167 miles
• 592.507 kilometers
• 319.928 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 Chiang Rai to Roi Et?

The estimated flight time from Chiang Rai International Airport to Roi Et Airport is 1 hour and 11 minutes.

What is the time difference between Chiang Rai and Roi Et?

There is no time difference between Chiang Rai and Roi Et.

Flight carbon footprint between Chiang Rai International Airport (CEI) and Roi Et Airport (ROI)

On average, flying from Chiang Rai to Roi Et generates about 79 kg of CO2 per passenger, and 79 kilograms equals 174 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Chiang Rai to Roi Et

See the map of the shortest flight path between Chiang Rai International Airport (CEI) and Roi Et Airport (ROI).

Airport information

Origin	Chiang Rai International Airport
City:	Chiang Rai
Country:	Thailand
IATA Code:	CEI
ICAO Code:	VTCT
Coordinates:	19°57′8″N, 99°52′58″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