There are
1,626 mi
from Porterville, CA to Yankton, SD
That's the driving distance. It would take 1 day 4 hours to go from Porterville, California to Yankton, South Dakota.
The flight distance (direct flight from Porterville, CA to Yankton, SD) is 1,240.86 mi.
1,626 mi = 2,616.98 kms