There are
690 mi
from Temecula, CA to Holladay, UT
That's the driving distance. It would take 12 hours 4 mins to go from Temecula, California to Holladay, Utah.
The flight distance (direct flight from Temecula, CA to Holladay, UT) is 575.79 mi.
690 mi = 1,110.33 kms