There are
1,548 mi
from Tucson, AZ to Watertown, SD
That's the driving distance. It would take 1 day 4 hours to go from Tucson, Arizona to Watertown, South Dakota.
The flight distance (direct flight from Tucson, AZ to Watertown, SD) is 1,147.33 mi.
1,548 mi = 1.61 kms