There are
2,140 mi
from Rancho Cucamonga, CA to Winchester, KY
That's the driving distance. It would take 1 day 13 hours to go from Rancho Cucamonga, California to Winchester, Kentucky.
The flight distance (direct flight from Rancho Cucamonga, CA to Winchester, KY) is 1,875.60 mi.
2,140 mi = 3.22 kms