There are
1,717 mi
from New Smyrna Beach, FL to Watertown, SD
That's the driving distance. It would take 1 day 7 hours to go from New Smyrna Beach, Florida to Watertown, South Dakota.
The flight distance (direct flight from New Smyrna Beach, FL to Watertown, SD) is 1,409.19 mi.
1,717 mi = 2,763.46 kms