There are
796 mi
from Sioux City, IA to Ferndale, MI
That's the driving distance. It would take 14 hours 48 mins to go from Sioux City, Iowa to Ferndale, Michigan.
The flight distance (direct flight from Sioux City, IA to Ferndale, MI) is 675.29 mi.
796 mi = 1,280.81 kms