There are
1,256 mi
from Sioux City, IA to Flagstaff, AZ
That's the driving distance. It would take 23 hours 3 mins to go from Sioux City, Iowa to Flagstaff, Arizona.
The flight distance (direct flight from Sioux City, IA to Flagstaff, AZ) is 960.42 mi.
1,256 mi = 1.61 kms