There are
1,497 mi
from Sioux City, IA to Fitchburg, MA
That's the driving distance. It would take 1 day 3 hours to go from Sioux City, Iowa to Fitchburg, Massachusetts.
The flight distance (direct flight from Sioux City, IA to Fitchburg, MA) is 1,247.79 mi.
1,497 mi = 1.61 kms