How far is Pierre, SD, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Pierre (Pierre Regional Airport) is 588 miles / 946 kilometers / 511 nautical miles.
The driving distance from Helena (HLN) to Pierre (PIR) is 749 miles / 1206 kilometers, and travel time by car is about 13 hours 59 minutes.
Helena Regional Airport – Pierre Regional Airport
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Distance from Helena to Pierre
There are several ways to calculate the distance from Helena to Pierre. 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 Helena to Pierre?
The estimated flight time from Helena Regional Airport to Pierre Regional Airport is 1 hour and 36 minutes.
What is the time difference between Helena and Pierre?
The time difference between Helena and Pierre is 1 hour. Pierre is 1 hour ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Pierre Regional Airport (PIR)
On average, flying from Helena to Pierre 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 Helena to Pierre
See the map of the shortest flight path between Helena Regional Airport (HLN) and Pierre Regional Airport (PIR).
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 | Pierre Regional Airport |
|---|---|
| City: | Pierre, SD |
| Country: | United States |
| IATA Code: | PIR |
| ICAO Code: | KPIR |
| Coordinates: | 44°22′57″N, 100°17′9″W |