Flight Leonardo da Vinci–Fiumicino Airport departs from Rome Leonardo da Vinci–Fiumicino Airport at 19:00 and arrives at Athens Athens International Airport Eleftherios Venizelos at 22:10.
The flighttime is about 2h 10m. The distance travelled ("as the bird flies"): 1363 Km. So the average speed is roughly 629 Km.
There is an 1 hour time difference between Rome and Athens