There are
2,156 mi
from Des Plaines, IL to Lompoc, CA
That's the driving distance. It would take 1 day 14 hours to go from Des Plaines, Illinois to Lompoc, California.
The flight distance (direct flight from Des Plaines, IL to Lompoc, CA) is 1,825.48 mi.
2,156 mi = 3,469.35 kms