There are
1,800 mi
from Livermore, CA to Watertown, SD
That's the driving distance. It would take 1 day 7 hours to go from Livermore, California to Watertown, South Dakota.
The flight distance (direct flight from Livermore, CA to Watertown, SD) is 1,366.90 mi.
1,800 mi = 1.61 kms