There are
663 mi
from Sioux City, IA to Avon, IN
That's the driving distance. It would take 12 hours 7 mins to go from Sioux City, Iowa to Avon, Indiana.
The flight distance (direct flight from Sioux City, IA to Avon, IN) is 553.32 mi.
663 mi = 1,067.51 kms