There are
1,679 mi
from San Leandro, CA to Yankton, SD
That's the driving distance. It would take 1 day 5 hours to go from San Leandro, California to Yankton, South Dakota.
The flight distance (direct flight from San Leandro, CA to Yankton, SD) is 1,346.81 mi.
1,679 mi = 1.61 kms