Flight Leonardo da Vinci–Fiumicino Airport departs from Rome Leonardo da Vinci–Fiumicino Airport at 12:15 and arrives at Montreal Pierre Elliott Trudeau International Airport at 15:20.
The flighttime is about 9h 05m. The distance travelled ("as the bird flies"): 9565 Km. So the average speed is roughly 1053 Km.
There is an 6 hour time difference between Rome and Montreal