There are
1,398 mi
from Sioux Falls, SD to Smithfield, NC
That's the driving distance. It would take 1 day 2 hours to go from Sioux Falls, South Dakota to Smithfield, North Carolina.
The flight distance (direct flight from Sioux Falls, SD to Smithfield, NC) is 1,121.61 mi.
1,398 mi = 2,249.18 kms