There are
1,646 mi
from Vallejo, CA to Yankton, SD
That's the driving distance. It would take 1 day 4 hours to go from Vallejo, California to Yankton, South Dakota.
The flight distance (direct flight from Vallejo, CA to Yankton, SD) is 1,341.83 mi.
1,646 mi = 1.61 kms