There are
690 mi
from Fort Smith, AR to Nicholasville, KY
That's the driving distance. It would take 12 hours 40 mins to go from Fort Smith, Arkansas to Nicholasville, Kentucky.
The flight distance (direct flight from Fort Smith, AR to Nicholasville, KY) is 571.06 mi.
690 mi = 1,109.75 kms