There are
2,083 mi
from San Diego, CA to Grayslake, IL
That's the driving distance. It would take 1 day 12 hours to go from San Diego, California to Grayslake, Illinois.
The flight distance (direct flight from San Diego, CA to Grayslake, IL) is 1,717.69 mi.
2,083 mi = 3.22 kms