There are
1,712 mi
from Avondale, AZ to St Charles, IL
That's the driving distance. It would take 1 day 7 hours to go from Avondale, Arizona to St Charles, Illinois.
The flight distance (direct flight from Avondale, AZ to St Charles, IL) is 1,432.91 mi.
1,712 mi = 1.61 kms