There are
659 mi
from Rialto, CA to Farmington, UT
That's the driving distance. It would take 11 hours 25 mins to go from Rialto, California to Farmington, Utah.
The flight distance (direct flight from Rialto, CA to Farmington, UT) is 561.68 mi.
659 mi = 1,060.20 kms