There are
1,394 mi
from Yankton, SD to Lynbrook, NY
That's the driving distance. It would take 1 day 1 hour to go from Yankton, South Dakota to Lynbrook, New York.
The flight distance (direct flight from Yankton, SD to Lynbrook, NY) is 1,228.16 mi.
1,394 mi = 2,243.68 kms