There are
1,679 mi
from Boise, ID to New Lenox, IL
That's the driving distance. It would take 1 day 4 hours to go from Boise, Idaho to New Lenox, Illinois.
The flight distance (direct flight from Boise, ID to New Lenox, IL) is 1,439.08 mi.
1,679 mi = 1.61 kms