There are
865 mi
from Schenectady, NY to Sycamore, IL
That's the driving distance. It would take 16 hours 39 mins to go from Schenectady, New York to Sycamore, Illinois.
The flight distance (direct flight from Schenectady, NY to Sycamore, IL) is 753.61 mi.
865 mi = 1,391.68 kms