There are
427 mi
from Rancho Cucamonga, CA to Flagstaff, AZ
That's the driving distance. It would take 7 hours 30 mins to go from Rancho Cucamonga, California to Flagstaff, Arizona.
The flight distance (direct flight from Rancho Cucamonga, CA to Flagstaff, AZ) is 346.70 mi.
427 mi = 687.69 kms