There are
980 mi
from Sioux City, IA to Brigham City, UT
That's the driving distance. It would take 17 hours 20 mins to go from Sioux City, Iowa to Brigham City, Utah.
The flight distance (direct flight from Sioux City, IA to Brigham City, UT) is 803.51 mi.
980 mi = 1,577.72 kms