There are
788 mi
from Provo, UT to Lompoc, CA
That's the driving distance. It would take 14 hours 4 mins to go from Provo, Utah to Lompoc, California.
The flight distance (direct flight from Provo, UT to Lompoc, CA) is 617.88 mi.
788 mi = 1,267.84 kms