How far is Watertown, NY, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Watertown (Watertown International Airport) is 1747 miles / 2811 kilometers / 1518 nautical miles.
The driving distance from Helena (HLN) to Watertown (ART) is 2067 miles / 3326 kilometers, and travel time by car is about 39 hours 19 minutes.
Helena Regional Airport – Watertown International Airport
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Distance from Helena to Watertown
There are several ways to calculate the distance from Helena to Watertown. 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 Helena to Watertown?
The estimated flight time from Helena Regional Airport to Watertown International Airport is 3 hours and 48 minutes.
What is the time difference between Helena and Watertown?
The time difference between Helena and Watertown is 2 hours. Watertown is 2 hours ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Watertown International Airport (ART)
On average, flying from Helena to Watertown 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 Helena to Watertown
See the map of the shortest flight path between Helena Regional Airport (HLN) and Watertown International Airport (ART).
Airport information
| Origin | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States  |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |
| Destination | Watertown International Airport |
|---|---|
| City: | Watertown, NY |
| Country: | United States |
| IATA Code: | ART |
| ICAO Code: | KART |
| Coordinates: | 43°59′30″N, 76°1′18″W |