There are
2,152 mi
from San Mateo, CA to Prospect Heights, IL
That's the driving distance. It would take 1 day 13 hours to go from San Mateo, California to Prospect Heights, Illinois.
The flight distance (direct flight from San Mateo, CA to Prospect Heights, IL) is 1,838.60 mi.
2,152 mi = 3.22 kms