There are
2,175 mi
from San Mateo, CA to Waukegan, IL
That's the driving distance. It would take 1 day 13 hours to go from San Mateo, California to Waukegan, Illinois.
The flight distance (direct flight from San Mateo, CA to Waukegan, IL) is 1,842.85 mi.
2,175 mi = 3.22 kms