There are
924 mi
from Denton, TX to Sycamore, IL
That's the driving distance. It would take 16 hours 51 mins to go from Denton, Texas to Sycamore, Illinois.
The flight distance (direct flight from Denton, TX to Sycamore, IL) is 761.57 mi.
924 mi = 1,486.64 kms