There are
1,741 mi
from Chico, CA to Watertown, SD
That's the driving distance. It would take 1 day 6 hours to go from Chico, California to Watertown, South Dakota.
The flight distance (direct flight from Chico, CA to Watertown, SD) is 1,306.90 mi.
1,741 mi = 1.61 kms