There are
1,975 mi
from Fullerton, CA to South Elgin, IL
That's the driving distance. It would take 1 day 10 hours to go from Fullerton, California to South Elgin, Illinois.
The flight distance (direct flight from Fullerton, CA to South Elgin, IL) is 1,699.49 mi.
1,975 mi = 1.61 kms