There are
870 mi
from Gulfport, MS to New Lenox, IL
That's the driving distance. It would take 16 hours 14 mins to go from Gulfport, Mississippi to New Lenox, Illinois.
The flight distance (direct flight from Gulfport, MS to New Lenox, IL) is 772.57 mi.
870 mi = 1,400.29 kms