There are
2,122 mi
from San Leandro, CA to Mokena, IL
That's the driving distance. It would take 1 day 12 hours to go from San Leandro, California to Mokena, Illinois.
The flight distance (direct flight from San Leandro, CA to Mokena, IL) is 1,830.24 mi.
2,122 mi = 3.22 kms