There are
1,957 mi
from Schaumburg, IL to Rancho Cucamonga, CA
That's the driving distance. It would take 1 day 10 hours to go from Schaumburg, Illinois to Rancho Cucamonga, California.
The flight distance (direct flight from Schaumburg, IL to Rancho Cucamonga, CA) is 1,686.08 mi.
1,957 mi = 3,149.22 kms