There are
730 mi
from Marietta, GA to Sycamore, IL
That's the driving distance. It would take 14 hours 13 mins to go from Marietta, Georgia to Sycamore, Illinois.
The flight distance (direct flight from Marietta, GA to Sycamore, IL) is 599.03 mi.
730 mi = 1,175.40 kms