There are
773 mi
from Sioux City, IA to Brownsville, TN
That's the driving distance. It would take 14 hours 27 mins to go from Sioux City, Iowa to Brownsville, Tennessee.
The flight distance (direct flight from Sioux City, IA to Brownsville, TN) is 611.38 mi.
773 mi = 1,243.59 kms