There are
1,024 mi
from St Charles, MO to Schenectady, NY
That's the driving distance. It would take 19 hours 30 mins to go from St Charles, Missouri to Schenectady, New York.
The flight distance (direct flight from St Charles, MO to Schenectady, NY) is 908.51 mi.
1,024 mi = 1,648.08 kms