There are
1,742 mi
from Sioux City, IA to Redwood City, CA
That's the driving distance. It would take 1 day 6 hours to go from Sioux City, Iowa to Redwood City, California.
The flight distance (direct flight from Sioux City, IA to Redwood City, CA) is 1,404.79 mi.
1,742 mi = 1.61 kms