There are
1,570 mi
from Riverside, CA to Sioux City, IA
That's the driving distance. It would take 1 day 3 hours to go from Riverside, California to Sioux City, Iowa.
The flight distance (direct flight from Riverside, CA to Sioux City, IA) is 1,278.62 mi.
1,570 mi = 1.61 kms