There are
686 mi
from Salt Lake City, UT to Irvine, CA
That's the driving distance. It would take 12 hours 2 mins to go from Salt Lake City, Utah to Irvine, California.
The flight distance (direct flight from Salt Lake City, UT to Irvine, CA) is 586.69 mi.
686 mi = 1,104.70 kms