How far is Helena, MT, from Pierre, SD?
The distance between Pierre (Pierre Regional Airport) and Helena (Helena Regional Airport) is 588 miles / 946 kilometers / 511 nautical miles.
The driving distance from Pierre (PIR) to Helena (HLN) is 748 miles / 1204 kilometers, and travel time by car is about 13 hours 51 minutes.
Pierre Regional Airport – Helena Regional Airport
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Distance from Pierre to Helena
There are several ways to calculate the distance from Pierre to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 587.890 miles
- 946.116 kilometers
- 510.862 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- 586.365 miles
- 943.663 kilometers
- 509.537 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 Pierre to Helena?
The estimated flight time from Pierre Regional Airport to Helena Regional Airport is 1 hour and 36 minutes.
What is the time difference between Pierre and Helena?
The time difference between Pierre and Helena is 1 hour. Helena is 1 hour behind Pierre.
Flight carbon footprint between Pierre Regional Airport (PIR) and Helena Regional Airport (HLN)
On average, flying from Pierre to Helena generates about 111 kg of CO2 per passenger, and 111 kilograms equals 245 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Pierre to Helena
See the map of the shortest flight path between Pierre Regional Airport (PIR) and Helena Regional Airport (HLN).
Airport information
| Origin | Pierre Regional Airport |
|---|---|
| City: | Pierre, SD |
| Country: | United States  |
| IATA Code: | PIR |
| ICAO Code: | KPIR |
| Coordinates: | 44°22′57″N, 100°17′9″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 |