There are
2,106 mi
from San Leandro, CA to Oswego, IL
That's the driving distance. It would take 1 day 12 hours to go from San Leandro, California to Oswego, Illinois.
The flight distance (direct flight from San Leandro, CA to Oswego, IL) is 1,805.84 mi.
2,106 mi = 3.22 kms