There are
790 mi
from Schenectady, NY to Markham, IL
That's the driving distance. It would take 15 hours 8 mins to go from Schenectady, New York to Markham, Illinois.
The flight distance (direct flight from Schenectady, NY to Markham, IL) is 708.24 mi.
790 mi = 1,272.04 kms