There are
2,782 mi
from Stamford, CT to Rancho Cucamonga, CA
That's the driving distance. It would take 2 days 1 hour to go from Stamford, Connecticut to Rancho Cucamonga, California.
The flight distance (direct flight from Stamford, CT to Rancho Cucamonga, CA) is 2,433.04 mi.
2,782 mi = 3.22 kms