There are
1,817 mi
from Sioux City, IA to Monterey, CA
That's the driving distance. It would take 1 day 7 hours to go from Sioux City, Iowa to Monterey, California.
The flight distance (direct flight from Sioux City, IA to Monterey, CA) is 1,411.94 mi.
1,817 mi = 1.61 kms