How far is Brookings, SD, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Brookings (Brookings Regional Airport) is 753 miles / 1212 kilometers / 654 nautical miles.
The driving distance from Helena (HLN) to Brookings (BKX) is 946 miles / 1522 kilometers, and travel time by car is about 16 hours 46 minutes.
Helena Regional Airport – Brookings Regional Airport
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Distance from Helena to Brookings
There are several ways to calculate the distance from Helena to Brookings. 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 Helena to Brookings?
The estimated flight time from Helena Regional Airport to Brookings Regional Airport is 1 hour and 55 minutes.
What is the time difference between Helena and Brookings?
The time difference between Helena and Brookings is 1 hour. Brookings is 1 hour ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Brookings Regional Airport (BKX)
On average, flying from Helena to Brookings 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 Helena to Brookings
See the map of the shortest flight path between Helena Regional Airport (HLN) and Brookings Regional Airport (BKX).
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 | Brookings Regional Airport |
|---|---|
| City: | Brookings, SD |
| Country: | United States |
| IATA Code: | BKX |
| ICAO Code: | KBKX |
| Coordinates: | 44°18′17″N, 96°49′0″W |