How far is Udon Thani from Chiang Rai?
The distance between Chiang Rai (Chiang Rai International Airport) and Udon Thani (Udon Thani International Airport) is 260 miles / 418 kilometers / 226 nautical miles.
The driving distance from Chiang Rai (CEI) to Udon Thani (UTH) is 491 miles / 790 kilometers, and travel time by car is about 11 hours 16 minutes.
Chiang Rai International Airport – Udon Thani International Airport
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Distance from Chiang Rai to Udon Thani
There are several ways to calculate the distance from Chiang Rai to Udon Thani. Here are two standard methods:
Vincenty's formula (applied above)- 259.621 miles
- 417.820 kilometers
- 225.605 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- 259.968 miles
- 418.378 kilometers
- 225.906 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 Udon Thani?
The estimated flight time from Chiang Rai International Airport to Udon Thani International Airport is 59 minutes.
What is the time difference between Chiang Rai and Udon Thani?
There is no time difference between Chiang Rai and Udon Thani.
Flight carbon footprint between Chiang Rai International Airport (CEI) and Udon Thani International Airport (UTH)
On average, flying from Chiang Rai to Udon Thani generates about 63 kg of CO2 per passenger, and 63 kilograms equals 139 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 Udon Thani
See the map of the shortest flight path between Chiang Rai International Airport (CEI) and Udon Thani International Airport (UTH).
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 | Udon Thani International Airport |
|---|---|
| City: | Udon Thani |
| Country: | Thailand |
| IATA Code: | UTH |
| ICAO Code: | VTUD |
| Coordinates: | 17°23′11″N, 102°47′16″E |