There are
1,448 mi
from Scottsdale, AZ to St Charles, MO
That's the driving distance. It would take 1 day 1 hour to go from Scottsdale, Arizona to St Charles, Missouri.
The flight distance (direct flight from Scottsdale, AZ to St Charles, MO) is 1,246.20 mi.
1,448 mi = 1.61 kms