There are
863 mi
from Sioux City, IA to Lexington, KY
That's the driving distance. It would take 15 hours 43 mins to go from Sioux City, Iowa to Lexington, Kentucky.
The flight distance (direct flight from Sioux City, IA to Lexington, KY) is 697.90 mi.
863 mi = 1,388.94 kms