There are
1,895 mi
from Fresno, CA to Watertown, SD
That's the driving distance. It would take 1 day 8 hours to go from Fresno, California to Watertown, South Dakota.
The flight distance (direct flight from Fresno, CA to Watertown, SD) is 1,305.83 mi.
1,895 mi = 1.61 kms