There are
1,720 mi
from San Leandro, CA to South Sioux City, NE
That's the driving distance. It would take 1 day 5 hours to go from San Leandro, California to South Sioux City, Nebraska.
The flight distance (direct flight from San Leandro, CA to South Sioux City, NE) is 1,393.71 mi.
1,720 mi = 1.61 kms