There are
1,055 mi
from Sioux City, IA to North Tonawanda, NY
That's the driving distance. It would take 19 hours 33 mins to go from Sioux City, Iowa to North Tonawanda, New York.
The flight distance (direct flight from Sioux City, IA to North Tonawanda, NY) is 888.61 mi.
1,055 mi = 1.61 kms