There are
2,634 mi
from Washington, DC to Rancho Cucamonga, CA
That's the driving distance. It would take 1 day 22 hours to go from Washington, District of Columbia to Rancho Cucamonga, California.
The flight distance (direct flight from Washington, DC to Rancho Cucamonga, CA) is 2,258 mi.
2,634 mi = 3.22 kms