There are
247 mi
from Rancho Cucamonga, CA to Somerton, AZ
That's the driving distance. It would take 4 hours 42 mins to go from Rancho Cucamonga, California to Somerton, Arizona.
The flight distance (direct flight from Rancho Cucamonga, CA to Somerton, AZ) is 196.38 mi.
247 mi = 397.19 kms