There are
850 mi
from Wichita, KS to Slidell, LA
That's the driving distance. It would take 15 hours 33 mins to go from Wichita, Kansas to Slidell, Louisiana.
The flight distance (direct flight from Wichita, KS to Slidell, LA) is 670.10 mi.
850 mi = 1,367.28 kms