There are
838 mi
from Arlington Heights, IL to Poughkeepsie, NY
That's the driving distance. It would take 15 hours 49 mins to go from Arlington Heights, Illinois to Poughkeepsie, New York.
The flight distance (direct flight from Arlington Heights, IL to Poughkeepsie, NY) is 722.79 mi.
838 mi = 1,349.42 kms