There are
1,496 mi
from Glendale, AZ to Clayton, MO
That's the driving distance. It would take 1 day 1 hour to go from Glendale, Arizona to Clayton, Missouri.
The flight distance (direct flight from Glendale, AZ to Clayton, MO) is 1,267.06 mi.
1,496 mi = 1.61 kms