There are
1,892 mi
from Rosemead, CA to Slidell, LA
That's the driving distance. It would take 1 day 8 hours to go from Rosemead, California to Slidell, Louisiana.
The flight distance (direct flight from Rosemead, CA to Slidell, LA) is 1,669.83 mi.
1,892 mi = 3,045.37 kms