There are
657 mi
from Provo, UT to San Juan Capistrano, CA
That's the driving distance. It would take 11 hours 31 mins to go from Provo, Utah to San Juan Capistrano, California.
The flight distance (direct flight from Provo, UT to San Juan Capistrano, CA) is 571.07 mi.
657 mi = 1,057.75 kms