There are
1,505 mi
from Peoria, AZ to Cahokia, IL
That's the driving distance. It would take 1 day 2 hours to go from Peoria, Arizona to Cahokia, Illinois.
The flight distance (direct flight from Peoria, AZ to Cahokia, IL) is 1,275.02 mi.
1,505 mi = 1.61 kms