There are
957 mi
from Sioux City, IA to Kaysville, UT
That's the driving distance. It would take 16 hours 57 mins to go from Sioux City, Iowa to Kaysville, Utah.
The flight distance (direct flight from Sioux City, IA to Kaysville, UT) is 805.98 mi.
957 mi = 1,540.36 kms