There are
515 mi
from Dickson, TN to Sycamore, IL
That's the driving distance. It would take 10 hours 8 mins to go from Dickson, Tennessee to Sycamore, Illinois.
The flight distance (direct flight from Dickson, TN to Sycamore, IL) is 414.36 mi.
515 mi = 828.89 kms