There are
1,322 mi
from Cottonwood, AZ to Vermillion, SD
That's the driving distance. It would take 1 day to go from Cottonwood, Arizona to Vermillion, South Dakota.
The flight distance (direct flight from Cottonwood, AZ to Vermillion, SD) is 981.89 mi.
1,322 mi = 2,126.74 kms