There are
2,116 mi
from Rapid City, SD to Boynton Beach, FL
That's the driving distance. It would take 1 day 13 hours to go from Rapid City, South Dakota to Boynton Beach, Florida.
The flight distance (direct flight from Rapid City, SD to Boynton Beach, FL) is 1,770.85 mi.
2,116 mi = 3,405.07 kms