There are
1,344 mi
from Rockford, IL to Kaysville, UT
That's the driving distance. It would take 23 hours 9 mins to go from Rockford, Illinois to Kaysville, Utah.
The flight distance (direct flight from Rockford, IL to Kaysville, UT) is 1,178.92 mi.
1,344 mi = 2,162.34 kms