There are
2,119 mi
from San Mateo, CA to Huntley, IL
That's the driving distance. It would take 1 day 12 hours to go from San Mateo, California to Huntley, Illinois.
The flight distance (direct flight from San Mateo, CA to Huntley, IL) is 1,813.34 mi.
2,119 mi = 3.22 kms