Back around 1997/98 there was a flight on a Friday night/Saturday morning at 0130 ish to Athens, with a majority of pax going to Aegina and other islands with tour operators such as Goldensun and Kosmar. I believe the flight was always very busy and popular. The A3 flight times are great for onwards connections to a whole heap of flights and ferries. It also means you would get to your final destination in the morning and not paying for a whole day of accommodation, getting there late evening, which seems to be the case with a majority of Greek flights from NCL.