There are
1,241 mi
from Flagstaff, AZ to Yankton, SD
That's the driving distance. It would take 22 hours 38 mins to go from Flagstaff, Arizona to Yankton, South Dakota.
The flight distance (direct flight from Flagstaff, AZ to Yankton, SD) is 928.02 mi.
1,241 mi = 1,997.67 kms