There are
1,068 mi
from Tomball, TX to Sioux Falls, SD
That's the driving distance. It would take 18 hours 53 mins to go from Tomball, Texas to Sioux Falls, South Dakota.
The flight distance (direct flight from Tomball, TX to Sioux Falls, SD) is 931.41 mi.
1,068 mi = 1,718.89 kms