There are
1,673 mi
from Fairfield, CA to Sioux City, IA
That's the driving distance. It would take 1 day 4 hours to go from Fairfield, California to Sioux City, Iowa.
The flight distance (direct flight from Fairfield, CA to Sioux City, IA) is 1,375.55 mi.
1,673 mi = 1.61 kms