There are
1,983 mi
from Wheaton, IL to Fullerton, CA
That's the driving distance. It would take 1 day 10 hours to go from Wheaton, Illinois to Fullerton, California.
The flight distance (direct flight from Wheaton, IL to Fullerton, CA) is 1,707.47 mi.
1,983 mi = 3,191.98 kms