There are
1,859 mi
from Temecula, CA to Slidell, LA
That's the driving distance. It would take 1 day 8 hours to go from Temecula, California to Slidell, Louisiana.
The flight distance (direct flight from Temecula, CA to Slidell, LA) is 1,616.15 mi.
1,859 mi = 1.61 kms