There are
897 mi
from Plano, TX to Sycamore, IL
That's the driving distance. It would take 16 hours 40 mins to go from Plano, Texas to Sycamore, Illinois.
The flight distance (direct flight from Plano, TX to Sycamore, IL) is 758.74 mi.
897 mi = 1,444.16 kms