How far is Helena, MT, from Stony Rapids?
The distance between Stony Rapids (Stony Rapids Airport) and Helena (Helena Regional Airport) is 910 miles / 1465 kilometers / 791 nautical miles.
The driving distance from Stony Rapids (YSF) to Helena (HLN) is 1264 miles / 2034 kilometers, and travel time by car is about 31 hours 45 minutes.
Stony Rapids Airport – Helena Regional Airport
Search flights
Distance from Stony Rapids to Helena
There are several ways to calculate the distance from Stony Rapids to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 910.227 miles
- 1464.868 kilometers
- 790.965 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- 909.330 miles
- 1463.426 kilometers
- 790.187 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 Stony Rapids to Helena?
The estimated flight time from Stony Rapids Airport to Helena Regional Airport is 2 hours and 13 minutes.
What is the time difference between Stony Rapids and Helena?
The time difference between Stony Rapids and Helena is 1 hour. Helena is 1 hour behind Stony Rapids.
Flight carbon footprint between Stony Rapids Airport (YSF) and Helena Regional Airport (HLN)
On average, flying from Stony Rapids to Helena generates about 144 kg of CO2 per passenger, and 144 kilograms equals 318 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Stony Rapids to Helena
See the map of the shortest flight path between Stony Rapids Airport (YSF) and Helena Regional Airport (HLN).
Airport information
| Origin | Stony Rapids Airport |
|---|---|
| City: | Stony Rapids |
| Country: | Canada  |
| IATA Code: | YSF |
| ICAO Code: | CYSF |
| Coordinates: | 59°15′1″N, 105°50′27″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 |