There are
1,099 mi
from Sioux Falls, SD to Deer Park, TX
That's the driving distance. It would take 19 hours 28 mins to go from Sioux Falls, South Dakota to Deer Park, Texas.
The flight distance (direct flight from Sioux Falls, SD to Deer Park, TX) is 960.52 mi.
1,099 mi = 1.61 kms