There are
1,272 mi
from Rapid City, SD to Lockhart, TX
That's the driving distance. It would take 22 hours 27 mins to go from Rapid City, South Dakota to Lockhart, Texas.
The flight distance (direct flight from Rapid City, SD to Lockhart, TX) is 1,027.07 mi.
1,272 mi = 2,046.68 kms