There are
2,137 mi
from San Mateo, CA to Brookfield, IL
That's the driving distance. It would take 1 day 12 hours to go from San Mateo, California to Brookfield, Illinois.
The flight distance (direct flight from San Mateo, CA to Brookfield, IL) is 1,843.69 mi.
2,137 mi = 3.22 kms