Flight John F Kennedy International Airport departs from New York John F Kennedy International Airport at 16:45 and arrives at Rome Leonardo da Vinci–Fiumicino Airport at 07:05.
The flighttime is about 8h 20m. The distance travelled ("as the bird flies"): 9566 Km. So the average speed is roughly 1148 Km.
There is an 6 hour time difference between New York and Rome