There are
670 mi
from San Clemente, CA to Orem, UT
That's the driving distance. It would take 11 hours 47 mins to go from San Clemente, California to Orem, Utah.
The flight distance (direct flight from San Clemente, CA to Orem, UT) is 576.12 mi.
670 mi = 1,079.03 kms