Distance between Louisville, KY (SDF) and Fort Smith, AR (FSM)

Flight distance from Louisville to Fort Smith (Louisville International Airport – Fort Smith Regional Airport) is 517 miles / 832 kilometers / 449 nautical miles. Estimated flight time is 1 hour 28 minutes.

Driving distance from Louisville (SDF) to Fort Smith (FSM) is 644 miles / 1037 kilometers and travel time by car is about 11 hours 14 minutes.

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).

Airport information

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

B Fort Smith Regional Airport
City: Fort Smith, AR
Country: United States
IATA Code: FSM
ICAO Code: KFSM
Coordinates: 35°20′11″N, 94°22′2″W

Time difference and current local times

The time difference between Louisville and Fort Smith is 1 hour. Fort Smith is 1 hour behind Louisville.

EDT

CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 101 kg (223 pounds).

Frequent Flyer Miles Calculator

Louisville (SDF) → Fort Smith (FSM).

Distance:
517
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
517

Round trip?