How far is Helena, MT, from Rochester, NY?
The distance between Rochester (Greater Rochester International Airport) and Helena (Helena Regional Airport) is 1688 miles / 2717 kilometers / 1467 nautical miles.
The driving distance from Rochester (ROC) to Helena (HLN) is 1965 miles / 3162 kilometers, and travel time by car is about 36 hours 43 minutes.
Greater Rochester International Airport – Helena Regional Airport
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Distance from Rochester to Helena
There are several ways to calculate the distance from Rochester to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 1688.487 miles
- 2717.357 kilometers
- 1467.255 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- 1683.908 miles
- 2709.986 kilometers
- 1463.276 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 Rochester to Helena?
The estimated flight time from Greater Rochester International Airport to Helena Regional Airport is 3 hours and 41 minutes.
What is the time difference between Rochester and Helena?
The time difference between Rochester and Helena is 2 hours. Helena is 2 hours behind Rochester.
Flight carbon footprint between Greater Rochester International Airport (ROC) and Helena Regional Airport (HLN)
On average, flying from Rochester to Helena generates about 192 kg of CO2 per passenger, and 192 kilograms equals 423 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Rochester to Helena
See the map of the shortest flight path between Greater Rochester International Airport (ROC) and Helena Regional Airport (HLN).
Airport information
| Origin | Greater Rochester International Airport |
|---|---|
| City: | Rochester, NY |
| Country: | United States  |
| IATA Code: | ROC |
| ICAO Code: | KROC |
| Coordinates: | 43°7′8″N, 77°40′20″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 |