Flight John F Kennedy International Airport departs from New York John F Kennedy International Airport at 17:40 and arrives at Rome Leonardo da Vinci–Fiumicino Airport at 08:15.
The flighttime is about 8h 35m. The distance travelled ("as the bird flies"): 9566 Km. So the average speed is roughly 1114 Km.
There is an 6 hour time difference between New York and Rome