There are
1,891 mi
from Deerfield Beach, FL to Watertown, SD
That's the driving distance. It would take 1 day 10 hours to go from Deerfield Beach, Florida to Watertown, South Dakota.
The flight distance (direct flight from Deerfield Beach, FL to Watertown, SD) is 1,593.43 mi.
1,891 mi = 1.61 kms