There are
778 mi
from Joliet, IL to Florham Park, NJ
That's the driving distance. It would take 14 hours 34 mins to go from Joliet, Illinois to Florham Park, New Jersey.
The flight distance (direct flight from Joliet, IL to Florham Park, NJ) is 713.42 mi.
778 mi = 1,252.57 kms