How far is Helena, MT, from Watertown, NY?
The distance between Watertown (Watertown International Airport) and Helena (Helena Regional Airport) is 1747 miles / 2811 kilometers / 1518 nautical miles.
The driving distance from Watertown (ART) to Helena (HLN) is 2067 miles / 3327 kilometers, and travel time by car is about 39 hours 15 minutes.
Watertown International Airport – Helena Regional Airport
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Distance from Watertown to Helena
There are several ways to calculate the distance from Watertown to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 1746.613 miles
- 2810.901 kilometers
- 1517.765 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- 1741.772 miles
- 2803.110 kilometers
- 1513.559 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 Watertown to Helena?
The estimated flight time from Watertown International Airport to Helena Regional Airport is 3 hours and 48 minutes.
What is the time difference between Watertown and Helena?
The time difference between Watertown and Helena is 2 hours. Helena is 2 hours behind Watertown.
Flight carbon footprint between Watertown International Airport (ART) and Helena Regional Airport (HLN)
On average, flying from Watertown to Helena generates about 196 kg of CO2 per passenger, and 196 kilograms equals 432 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Watertown to Helena
See the map of the shortest flight path between Watertown International Airport (ART) and Helena Regional Airport (HLN).
Airport information
| Origin | Watertown International Airport |
|---|---|
| City: | Watertown, NY |
| Country: | United States  |
| IATA Code: | ART |
| ICAO Code: | KART |
| Coordinates: | 43°59′30″N, 76°1′18″W |
| 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 |