There are
707 mi
from Vacaville, CA to Clearfield, UT
That's the driving distance. It would take 12 hours 5 mins to go from Vacaville, California to Clearfield, Utah.
The flight distance (direct flight from Vacaville, CA to Clearfield, UT) is 562.09 mi.
707 mi = 1,137.95 kms