There are
941 mi
from Mesquite, TX to Sycamore, IL
That's the driving distance. It would take 17 hours 3 mins to go from Mesquite, Texas to Sycamore, Illinois.
The flight distance (direct flight from Mesquite, TX to Sycamore, IL) is 770.39 mi.
941 mi = 1,514.52 kms