There are
1,947 mi
from Rancho Cucamonga, CA to Elgin, IL
That's the driving distance. It would take 1 day 10 hours to go from Rancho Cucamonga, California to Elgin, Illinois.
The flight distance (direct flight from Rancho Cucamonga, CA to Elgin, IL) is 1,676.10 mi.
1,947 mi = 1.61 kms