Flight Leonardo da Vinci–Fiumicino Airport departs from Rome Leonardo da Vinci–Fiumicino Airport at 10:40 and arrives at Washington Dulles International Airport at 14:40.
The flighttime is about 10h 00m. The distance travelled ("as the bird flies"): 9976 Km. So the average speed is roughly 998 Km.
There is an 6 hour time difference between Rome and Washington
