There are
1,448 mi
from Warwick, RI to Slidell, LA
That's the driving distance. It would take 1 day 3 hours to go from Warwick, Rhode Island to Slidell, Louisiana.
The flight distance (direct flight from Warwick, RI to Slidell, LA) is 1,290.39 mi.
1,448 mi = 1.61 kms