How far is Helena, MT, from Kathmandu?
The distance between Kathmandu (Tribhuvan International Airport) and Helena (Helena Regional Airport) is 7204 miles / 11593 kilometers / 6260 nautical miles.
Tribhuvan International Airport – Helena Regional Airport
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Distance from Kathmandu to Helena
There are several ways to calculate the distance from Kathmandu to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 7203.662 miles
- 11593.171 kilometers
- 6259.811 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- 7189.674 miles
- 11570.658 kilometers
- 6247.656 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 Helena?
The estimated flight time from Tribhuvan International Airport to Helena Regional Airport is 14 hours and 8 minutes.
What is the time difference between Kathmandu and Helena?
Flight carbon footprint between Tribhuvan International Airport (KTM) and Helena Regional Airport (HLN)
On average, flying from Kathmandu to Helena generates about 884 kg of CO2 per passenger, and 884 kilograms equals 1 948 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Kathmandu to Helena
See the map of the shortest flight path between Tribhuvan International Airport (KTM) and Helena Regional Airport (HLN).
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 | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States  |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |