There are
2,038 mi
from Stockton, CA to Sycamore, IL
That's the driving distance. It would take 1 day 10 hours to go from Stockton, California to Sycamore, Illinois.
The flight distance (direct flight from Stockton, CA to Sycamore, IL) is 1,737.94 mi.
2,038 mi = 3.22 kms