There are
2,080 mi
from Daly City, CA to Dekalb, IL
That's the driving distance. It would take 1 day 11 hours to go from Daly City, California to Dekalb, Illinois.
The flight distance (direct flight from Daly City, CA to Dekalb, IL) is 1,801.66 mi.
2,080 mi = 3.22 kms