How far is Chiang Rai from Roi Et?

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

The driving distance from Roi Et (ROI) to Chiang Rai (CEI) is 536 miles / 863 kilometers, and travel time by car is about 11 hours 44 minutes.

Distance from Roi Et to Chiang Rai

There are several ways to calculate the distance from Roi Et to Chiang Rai. 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 Roi Et to Chiang Rai?

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

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

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

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

On average, flying from Roi Et to Chiang Rai 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 Roi Et to Chiang Rai

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

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