GQ 421 then A3 664 at Athens
Zakynthos → Athens → Milan
Timetable, Athens time
17:45GQ 421 from Zakynthos at the gate
16:15A3 664 to Milan leaves the gate
22 h 30 apart on the timetable, overnight
A3 664 leaves 22 h 30 after GQ 421 arrives on the timetable: more than half a day, so not a connection we count.