There are
2,142 mi
from Rancho Cucamonga, CA to Fort Thomas, KY
That's the driving distance. It would take 1 day 13 hours to go from Rancho Cucamonga, California to Fort Thomas, Kentucky.
The flight distance (direct flight from Rancho Cucamonga, CA to Fort Thomas, KY) is 1,859.92 mi.
2,142 mi = 3.22 kms