There are
740 mi
from Hemet, CA to Brigham City, UT
That's the driving distance. It would take 12 hours 57 mins to go from Hemet, California to Brigham City, Utah.
The flight distance (direct flight from Hemet, CA to Brigham City, UT) is 600.74 mi.
740 mi = 1,190.36 kms