There are
1,525 mi
from Tempe, AZ to Slidell, LA
That's the driving distance. It would take 1 day 2 hours to go from Tempe, Arizona to Slidell, Louisiana.
The flight distance (direct flight from Tempe, AZ to Slidell, LA) is 1,315.99 mi.
1,525 mi = 1.61 kms