There are
1,522 mi
from Rapid City, SD to Thibodaux, LA
That's the driving distance. It would take 1 day 3 hours to go from Rapid City, South Dakota to Thibodaux, Louisiana.
The flight distance (direct flight from Rapid City, SD to Thibodaux, LA) is 1,198.51 mi.
1,522 mi = 2,449.22 kms