There are
1,540 mi
from Glendale, AZ to Slidell, LA
That's the driving distance. It would take 1 day 2 hours to go from Glendale, Arizona to Slidell, Louisiana.
The flight distance (direct flight from Glendale, AZ to Slidell, LA) is 1,330.62 mi.
1,540 mi = 1.61 kms