How far is Udon Thani from Kathmandu?
The distance between Kathmandu (Tribhuvan International Airport) and Udon Thani (Udon Thani International Airport) is 1318 miles / 2122 kilometers / 1146 nautical miles.
The driving distance from Kathmandu (KTM) to Udon Thani (UTH) is 2100 miles / 3380 kilometers, and travel time by car is about 41 hours 34 minutes.
Tribhuvan International Airport – Udon Thani International Airport
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Distance from Kathmandu to Udon Thani
There are several ways to calculate the distance from Kathmandu to Udon Thani. Here are two standard methods:
Vincenty's formula (applied above)- 1318.273 miles
- 2121.555 kilometers
- 1145.548 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- 1318.337 miles
- 2121.658 kilometers
- 1145.604 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 Kathmandu to Udon Thani?
The estimated flight time from Tribhuvan International Airport to Udon Thani International Airport is 2 hours and 59 minutes.
What is the time difference between Kathmandu and Udon Thani?
Flight carbon footprint between Tribhuvan International Airport (KTM) and Udon Thani International Airport (UTH)
On average, flying from Kathmandu to Udon Thani generates about 168 kg of CO2 per passenger, and 168 kilograms equals 370 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Kathmandu to Udon Thani
See the map of the shortest flight path between Tribhuvan International Airport (KTM) and Udon Thani International Airport (UTH).
Airport information
| Origin | Tribhuvan International Airport |
|---|---|
| City: | Kathmandu |
| Country: | Nepal  |
| IATA Code: | KTM |
| ICAO Code: | VNKT |
| Coordinates: | 27°41′47″N, 85°21′32″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 |