Map of flight path and driving directions from Louisville to Fort Smith.
Shortest flight path between Louisville International Airport (SDF) and Fort Smith Regional Airport (FSM).
How far is Fort Smith from Louisville?
There are several ways to calculate distances between Louisville and Fort Smith. Here are two common methods:Vincenty's formula (applied above)
- 517.084 miles
- 832.166 kilometers
- 449.333 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
- 516.207 miles
- 830.754 kilometers
- 448.571 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).
Time difference and current local times
The time difference between Louisville and Fort Smith is 1 hour. Fort Smith is 1 hour behind Louisville.
Fort Smith, AR
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 101 kg (223 pounds).
Frequent Flyer Miles Calculator
Louisville (SDF) → Fort Smith (FSM).