There are
664 mi
from Provo, UT to San Clemente, CA
That's the driving distance. It would take 11 hours 39 mins to go from Provo, Utah to San Clemente, California.
The flight distance (direct flight from Provo, UT to San Clemente, CA) is 573.75 mi.
664 mi = 1,069.10 kms