There are
2,143 mi
from Cicero, IL to San Mateo, CA
That's the driving distance. It would take 1 day 13 hours to go from Cicero, Illinois to San Mateo, California.
The flight distance (direct flight from Cicero, IL to San Mateo, CA) is 1,848.66 mi.
2,143 mi = 3.22 kms