There are
1,979 mi
from Rancho Cucamonga, CA to Bourbonnais, IL
That's the driving distance. It would take 1 day 10 hours to go from Rancho Cucamonga, California to Bourbonnais, Illinois.
The flight distance (direct flight from Rancho Cucamonga, CA to Bourbonnais, IL) is 1,688.23 mi.
1,979 mi = 1.61 kms