There are
788 mi
from Sioux Falls, SD to Sulphur Springs, TX
That's the driving distance. It would take 15 hours to go from Sioux Falls, South Dakota to Sulphur Springs, Texas.
The flight distance (direct flight from Sioux Falls, SD to Sulphur Springs, TX) is 721.81 mi.
788 mi = 1,267.47 kms