Miles between Boston, MA and Watertown, SD

There are
1,660 mi
from Boston, MA to Watertown, SD

That's the driving distance. It would take 1 day 6 hours to go from Boston, Massachusetts to Watertown, South Dakota.

The flight distance (direct flight from Boston, MA to Watertown, SD) is 1,309.09 mi.

1,660 mi = 1.61 kms