There are
1,635 mi
from Oceanside, CA to Sioux City, IA
That's the driving distance. It would take 1 day 4 hours to go from Oceanside, California to Sioux City, Iowa.
The flight distance (direct flight from Oceanside, CA to Sioux City, IA) is 1,307.54 mi.
1,635 mi = 1.61 kms