There are
2,100 mi
from Des Plaines, IL to Oakley, CA
That's the driving distance. It would take 1 day 12 hours to go from Des Plaines, Illinois to Oakley, California.
The flight distance (direct flight from Des Plaines, IL to Oakley, CA) is 1,799.72 mi.
2,100 mi = 3,380.29 kms