There are
741 mi
from Roswell, GA to Sycamore, IL
That's the driving distance. It would take 14 hours 30 mins to go from Roswell, Georgia to Sycamore, Illinois.
The flight distance (direct flight from Roswell, GA to Sycamore, IL) is 598.41 mi.
741 mi = 1,192.10 kms