There are
1,718 mi
from Orem, UT to Slidell, LA
That's the driving distance. It would take 1 day 8 hours to go from Orem, Utah to Slidell, Louisiana.
The flight distance (direct flight from Orem, UT to Slidell, LA) is 1,411 mi.
1,718 mi = 2,764.23 kms