There are
1,424 mi
from Rancho Cucamonga, CA to Allen, TX
That's the driving distance. It would take 1 day to go from Rancho Cucamonga, California to Allen, Texas.
The flight distance (direct flight from Rancho Cucamonga, CA to Allen, TX) is 1,203.90 mi.
1,424 mi = 1.61 kms