There are
1,657 mi
from Oxnard, CA to Sioux City, IA
That's the driving distance. It would take 1 day 5 hours to go from Oxnard, California to Sioux City, Iowa.
The flight distance (direct flight from Oxnard, CA to Sioux City, IA) is 1,355.29 mi.
1,657 mi = 1.61 kms