There are
535 mi
from Knoxville, TN to Palos Heights, IL
That's the driving distance. It would take 10 hours 1 min to go from Knoxville, Tennessee to Palos Heights, Illinois.
The flight distance (direct flight from Knoxville, TN to Palos Heights, IL) is 446.02 mi.
535 mi = 861.06 kms