There are
1,813 mi
from Sioux City, IA to Seaside, CA
That's the driving distance. It would take 1 day 7 hours to go from Sioux City, Iowa to Seaside, California.
The flight distance (direct flight from Sioux City, IA to Seaside, CA) is 1,407.50 mi.
1,813 mi = 1.61 kms