There are
675 mi
from Rancho Cucamonga, CA to Clearfield, UT
That's the driving distance. It would take 11 hours 41 mins to go from Rancho Cucamonga, California to Clearfield, Utah.
The flight distance (direct flight from Rancho Cucamonga, CA to Clearfield, UT) is 571.59 mi.
675 mi = 1,085.56 kms