How far is Ubon Ratchathani from Chiang Rai?
There are several ways to calculate distances between Chiang Rai and Ubon Ratchathani. Here are two common methods:Vincenty's formula (applied above)
- 461.103 miles
- 742.074 kilometers
- 400.688 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
- 461.834 miles
- 743.249 kilometers
- 401.323 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).
Estimated flight time from Chiang Rai International Airport (CEI) to Ubon Ratchathani Airport (UBP) is 1 hour 22 minutes.
Time difference and current local times
There is no time difference between Chiang Rai and Ubon Ratchathani.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 93 kg (205 pounds).
Chiang Rai to Ubon Ratchathani flight map.
Frequent Flyer Miles Calculator
Chiang Rai (CEI) → Ubon Ratchathani (UBP).