Air Miles Calculator

Distance between Louisville, KY (SDF) and Helena, MT (HLN)

Flight distance from Louisville to Helena (Louisville International Airport – Helena Regional Airport) is 1455 miles / 2341 kilometers / 1264 nautical miles. Estimated flight time is 3 hours 15 minutes.

Driving distance from Louisville (SDF) to Helena (HLN) is 1824 miles / 2936 kilometers and travel time by car is about 30 hours 4 minutes.

Map of flight path and driving directions from Louisville to Helena.

Shortest flight path between Louisville International Airport (SDF) and Helena Regional Airport (HLN).

How far is Helena from Louisville?

There are several ways to calculate distances between Louisville and Helena. Here are two common 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 earth.

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).

Airport information


A Louisville International Airport
City: Louisville, KY
Country: United States Flag of United States
IATA Code: SDF
ICAO Code: KSDF
Coordinates: 38°10′27″N, 85°44′9″W

B Helena Regional Airport
City: Helena, MT
Country: United States Flag of United States
IATA Code: HLN
ICAO Code: KHLN
Coordinates: 46°36′24″N, 111°58′58″W

Time difference and current local times

The time difference between Louisville and Helena is 2 hours. Helena is 2 hours behind Louisville.

Time Difference

Louisville, KY

 EDT

Helena, MT

 MDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 177 kg (389 pounds).

Frequent Flyer Miles Calculator

Louisville (SDF) → Helena (HLN).

Distance:
1455
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1455

Round trip?