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