There are
1,567 mi
from Rapid City, SD to Westwego, LA
That's the driving distance. It would take 1 day 4 hours to go from Rapid City, South Dakota to Westwego, Louisiana.
The flight distance (direct flight from Rapid City, SD to Westwego, LA) is 1,213.60 mi.
1,567 mi = 2,521.84 kms