There are
1,592 mi
from Yankton, SD to Oceanside, CA
That's the driving distance. It would take 1 day 4 hours to go from Yankton, South Dakota to Oceanside, California.
The flight distance (direct flight from Yankton, SD to Oceanside, CA) is 1,271.54 mi.
1,592 mi = 2,561.65 kms