There are
2,722 mi
from Rancho Cucamonga, CA to Dover, DE
That's the driving distance. It would take 2 days to go from Rancho Cucamonga, California to Dover, Delaware.
The flight distance (direct flight from Rancho Cucamonga, CA to Dover, DE) is 2,337.44 mi.
2,722 mi = 4,380.45 kms