There are
2,080 mi
from Wheaton, IL to Oakley, CA
That's the driving distance. It would take 1 day 11 hours to go from Wheaton, Illinois to Oakley, California.
The flight distance (direct flight from Wheaton, IL to Oakley, CA) is 1,788.76 mi.
2,080 mi = 3,347.25 kms