There are
1,733 mi
from San Mateo, CA to South Sioux City, NE
That's the driving distance. It would take 1 day 5 hours to go from San Mateo, California to South Sioux City, Nebraska.
The flight distance (direct flight from San Mateo, CA to South Sioux City, NE) is 1,406.51 mi.
1,733 mi = 1.61 kms