There are
2,591 mi
from Rancho Cucamonga, CA to Westminster, MD
That's the driving distance. It would take 1 day 22 hours to go from Rancho Cucamonga, California to Westminster, Maryland.
The flight distance (direct flight from Rancho Cucamonga, CA to Westminster, MD) is 2,256.99 mi.
2,591 mi = 3.22 kms