There are
1,248 mi
from Marietta, GA to Watertown, SD
That's the driving distance. It would take 22 hours 44 mins to go from Marietta, Georgia to Watertown, South Dakota.
The flight distance (direct flight from Marietta, GA to Watertown, SD) is 1,008.42 mi.
1,248 mi = 2,009.15 kms