There are
683 mi
from Irvine, CA to Holladay, UT
That's the driving distance. It would take 12 hours 2 mins to go from Irvine, California to Holladay, Utah.
The flight distance (direct flight from Irvine, CA to Holladay, UT) is 583.55 mi.
683 mi = 1,099.76 kms