There are
1,738 mi
from Rapid City, SD to Massapequa Park, NY
That's the driving distance. It would take 1 day 7 hours to go from Rapid City, South Dakota to Massapequa Park, New York.
The flight distance (direct flight from Rapid City, SD to Massapequa Park, NY) is 1,529.19 mi.
1,738 mi = 2,797.48 kms