There are
1,618 mi
from Santa Monica, CA to Sioux City, IA
That's the driving distance. It would take 1 day 4 hours to go from Santa Monica, California to Sioux City, Iowa.
The flight distance (direct flight from Santa Monica, CA to Sioux City, IA) is 1,328.64 mi.
1,618 mi = 1.61 kms