There are
1,826 mi
from Glendale, AZ to Round Lake Beach, IL
That's the driving distance. It would take 1 day 8 hours to go from Glendale, Arizona to Round Lake Beach, Illinois.
The flight distance (direct flight from Glendale, AZ to Round Lake Beach, IL) is 1,440.96 mi.
1,826 mi = 1.61 kms