There are
2,150 mi
from San Mateo, CA to Crestwood, IL
That's the driving distance. It would take 1 day 13 hours to go from San Mateo, California to Crestwood, Illinois.
The flight distance (direct flight from San Mateo, CA to Crestwood, IL) is 1,849.30 mi.
2,150 mi = 3.22 kms