There are
861 mi
from Lexington, KY to South Sioux City, NE
That's the driving distance. It would take 15 hours 41 mins to go from Lexington, Kentucky to South Sioux City, Nebraska.
The flight distance (direct flight from Lexington, KY to South Sioux City, NE) is 697.57 mi.
861 mi = 1,385.64 kms