How far is Helena, MT, from Louisville, KY?
The distance between Louisville (Louisville International Airport) and Helena (Helena Regional Airport) is 1455 miles / 2341 kilometers / 1264 nautical miles.
The driving distance from Louisville (SDF) to Helena (HLN) is 1769 miles / 2847 kilometers, and travel time by car is about 31 hours 37 minutes.
Louisville International Airport – Helena Regional Airport
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Distance from Louisville to Helena
There are several ways to calculate the distance from Louisville to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 1454.765 miles
- 2341.217 kilometers
- 1264.156 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- 1451.787 miles
- 2336.425 kilometers
- 1261.569 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 Louisville to Helena?
The estimated flight time from Louisville International Airport to Helena Regional Airport is 3 hours and 15 minutes.
What is the time difference between Louisville and Helena?
The time difference between Louisville and Helena is 2 hours. Helena is 2 hours behind Louisville.
Flight carbon footprint between Louisville International Airport (SDF) and Helena Regional Airport (HLN)
On average, flying from Louisville to Helena generates about 177 kg of CO2 per passenger, and 177 kilograms equals 389 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Louisville to Helena
See the map of the shortest flight path between Louisville International Airport (SDF) and Helena Regional Airport (HLN).
Airport information
| Origin | Louisville International Airport |
|---|---|
| City: | Louisville, KY |
| Country: | United States  |
| IATA Code: | SDF |
| ICAO Code: | KSDF |
| Coordinates: | 38°10′27″N, 85°44′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 |