There are
2,125 mi
from Des Plaines, IL to Larkspur, CA
That's the driving distance. It would take 1 day 12 hours to go from Des Plaines, Illinois to Larkspur, California.
The flight distance (direct flight from Des Plaines, IL to Larkspur, CA) is 1,843.39 mi.
2,125 mi = 3,419.45 kms