There are
1,502 mi
from Peoria, AZ to St Charles, MO
That's the driving distance. It would take 1 day 2 hours to go from Peoria, Arizona to St Charles, Missouri.
The flight distance (direct flight from Peoria, AZ to St Charles, MO) is 1,260.36 mi.
1,502 mi = 1.61 kms