There are
1,072 mi
from Sioux City, IA to Gallup, NM
That's the driving distance. It would take 19 hours 56 mins to go from Sioux City, Iowa to Gallup, New Mexico.
The flight distance (direct flight from Sioux City, IA to Gallup, NM) is 817.82 mi.
1,072 mi = 1.61 kms