How far is Rochester, MN, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Rochester (Rochester International Airport) is 966 miles / 1554 kilometers / 839 nautical miles.
The driving distance from Helena (HLN) to Rochester (RST) is 1122 miles / 1806 kilometers, and travel time by car is about 19 hours 57 minutes.
Helena Regional Airport – Rochester International Airport
Search flights
Distance from Helena to Rochester
There are several ways to calculate the distance from Helena to Rochester. Here are two standard methods:
Vincenty's formula (applied above)- 965.719 miles
- 1554.175 kilometers
- 839.187 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- 963.130 miles
- 1550.008 kilometers
- 836.937 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 Rochester?
The estimated flight time from Helena Regional Airport to Rochester International Airport is 2 hours and 19 minutes.
What is the time difference between Helena and Rochester?
The time difference between Helena and Rochester is 1 hour. Rochester is 1 hour ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Rochester International Airport (RST)
On average, flying from Helena to Rochester generates about 148 kg of CO2 per passenger, and 148 kilograms equals 327 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 Rochester
See the map of the shortest flight path between Helena Regional Airport (HLN) and Rochester International Airport (RST).
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 | Rochester International Airport |
|---|---|
| City: | Rochester, MN |
| Country: | United States |
| IATA Code: | RST |
| ICAO Code: | KRST |
| Coordinates: | 43°54′29″N, 92°30′0″W |