How far is Helena, MT, from Sioux Falls, SD?
The distance between Sioux Falls (Sioux Falls Regional Airport) and Helena (Helena Regional Airport) is 773 miles / 1244 kilometers / 672 nautical miles.
The driving distance from Sioux Falls (FSD) to Helena (HLN) is 900 miles / 1448 kilometers, and travel time by car is about 16 hours 6 minutes.
Sioux Falls Regional Airport – Helena Regional Airport
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Distance from Sioux Falls to Helena
There are several ways to calculate the distance from Sioux Falls to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 772.792 miles
- 1243.688 kilometers
- 671.538 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- 770.821 miles
- 1240.516 kilometers
- 669.825 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 Sioux Falls to Helena?
The estimated flight time from Sioux Falls Regional Airport to Helena Regional Airport is 1 hour and 57 minutes.
What is the time difference between Sioux Falls and Helena?
The time difference between Sioux Falls and Helena is 1 hour. Helena is 1 hour behind Sioux Falls.
Flight carbon footprint between Sioux Falls Regional Airport (FSD) and Helena Regional Airport (HLN)
On average, flying from Sioux Falls to Helena generates about 132 kg of CO2 per passenger, and 132 kilograms equals 291 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Sioux Falls to Helena
See the map of the shortest flight path between Sioux Falls Regional Airport (FSD) and Helena Regional Airport (HLN).
Airport information
| Origin | Sioux Falls Regional Airport |
|---|---|
| City: | Sioux Falls, SD |
| Country: | United States  |
| IATA Code: | FSD |
| ICAO Code: | KFSD |
| Coordinates: | 43°34′55″N, 96°44′30″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 |