There are
1,686 mi
from Vallejo, CA to South Sioux City, NE
That's the driving distance. It would take 1 day 5 hours to go from Vallejo, California to South Sioux City, Nebraska.
The flight distance (direct flight from Vallejo, CA to South Sioux City, NE) is 1,389.36 mi.
1,686 mi = 1.61 kms