Map of flight path and driving directions from Rayong to Chiang Rai.
Shortest flight path between U-Tapao International Airport (UTP) and Chiang Rai International Airport (CEI).
How far is Chiang Rai from Rayong?
There are several ways to calculate distances between Rayong and Chiang Rai. Here are two common methods:Vincenty's formula (applied above)
- 505.583 miles
- 813.657 kilometers
- 439.339 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.Haversine formula
- 507.945 miles
- 817.458 kilometers
- 441.392 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).
Time difference and current local times
There is no time difference between Rayong and Chiang Rai.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 99 kg (219 pounds).
Frequent Flyer Miles Calculator
Rayong (UTP) → Chiang Rai (CEI).