There are
1,986 mi
from Fullerton, CA to Downers Grove, IL
That's the driving distance. It would take 1 day 10 hours to go from Fullerton, California to Downers Grove, Illinois.
The flight distance (direct flight from Fullerton, CA to Downers Grove, IL) is 1,711.73 mi.
1,986 mi = 1.61 kms