There are
942 mi
from Cheyenne, WY to New Lenox, IL
That's the driving distance. It would take 16 hours 31 mins to go from Cheyenne, Wyoming to New Lenox, Illinois.
The flight distance (direct flight from Cheyenne, WY to New Lenox, IL) is 873.51 mi.
942 mi = 1,515.45 kms