There are
1,922 mi
from Rancho Cucamonga, CA to Sycamore, IL
That's the driving distance. It would take 1 day 9 hours to go from Rancho Cucamonga, California to Sycamore, Illinois.
The flight distance (direct flight from Rancho Cucamonga, CA to Sycamore, IL) is 1,655.02 mi.
1,922 mi = 1.61 kms