How far is Louisville, KY, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Louisville (Louisville International Airport) is 1455 miles / 2341 kilometers / 1264 nautical miles.
The driving distance from Helena (HLN) to Louisville (SDF) is 1750 miles / 2816 kilometers, and travel time by car is about 31 hours 43 minutes.
Helena Regional Airport – Louisville International Airport
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Distance from Helena to Louisville
There are several ways to calculate the distance from Helena to Louisville. 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 Helena to Louisville?
The estimated flight time from Helena Regional Airport to Louisville International Airport is 3 hours and 15 minutes.
What is the time difference between Helena and Louisville?
The time difference between Helena and Louisville is 2 hours. Louisville is 2 hours ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Louisville International Airport (SDF)
On average, flying from Helena to Louisville 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 Helena to Louisville
See the map of the shortest flight path between Helena Regional Airport (HLN) and Louisville International Airport (SDF).
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 | Louisville International Airport |
|---|---|
| City: | Louisville, KY |
| Country: | United States |
| IATA Code: | SDF |
| ICAO Code: | KSDF |
| Coordinates: | 38°10′27″N, 85°44′9″W |