There are
1,711 mi
from Arcadia, CA to Watertown, SD
That's the driving distance. It would take 1 day 6 hours to go from Arcadia, California to Watertown, South Dakota.
The flight distance (direct flight from Arcadia, CA to Watertown, SD) is 1,333.85 mi.
1,711 mi = 2,753.73 kms