There are
701 mi
from Irvine, CA to Farmington, UT
That's the driving distance. It would take 12 hours 17 mins to go from Irvine, California to Farmington, Utah.
The flight distance (direct flight from Irvine, CA to Farmington, UT) is 599.24 mi.
701 mi = 1,127.60 kms