How far is Helena, MT, from Brookings, SD?
The distance between Brookings (Brookings Regional Airport) and Helena (Helena Regional Airport) is 753 miles / 1212 kilometers / 654 nautical miles.
The driving distance from Brookings (BKX) to Helena (HLN) is 944 miles / 1520 kilometers, and travel time by car is about 16 hours 39 minutes.
Brookings Regional Airport – Helena Regional Airport
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Distance from Brookings to Helena
There are several ways to calculate the distance from Brookings to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 752.798 miles
- 1211.511 kilometers
- 654.163 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- 750.788 miles
- 1208.277 kilometers
- 652.417 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 Brookings to Helena?
The estimated flight time from Brookings Regional Airport to Helena Regional Airport is 1 hour and 55 minutes.
What is the time difference between Brookings and Helena?
The time difference between Brookings and Helena is 1 hour. Helena is 1 hour behind Brookings.
Flight carbon footprint between Brookings Regional Airport (BKX) and Helena Regional Airport (HLN)
On average, flying from Brookings to Helena generates about 130 kg of CO2 per passenger, and 130 kilograms equals 287 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Brookings to Helena
See the map of the shortest flight path between Brookings Regional Airport (BKX) and Helena Regional Airport (HLN).
Airport information
| Origin | Brookings Regional Airport |
|---|---|
| City: | Brookings, SD |
| Country: | United States  |
| IATA Code: | BKX |
| ICAO Code: | KBKX |
| Coordinates: | 44°18′17″N, 96°49′0″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 |