There are
1,976 mi
from San Bernardino, CA to Grayslake, IL
That's the driving distance. It would take 1 day 10 hours to go from San Bernardino, California to Grayslake, Illinois.
The flight distance (direct flight from San Bernardino, CA to Grayslake, IL) is 1,676.43 mi.
1,976 mi = 1.61 kms