Flight Athens International Airport Eleftherios Venizelos departs from Athens Athens International Airport Eleftherios Venizelos at 07:55 and arrives at Copenhagen Copenhagen Airport, Kastrup at 10:15.
The flighttime is about 3h 20m. The distance travelled ("as the bird flies"): 2245 Km. So the average speed is roughly 674 Km.
There is an 1 hour time difference between Athens and Copenhagen