GQ 421 then A3 224 at Athens
Zakynthos → Athens → Kos
Timetable, Athens time
17:45GQ 421 from Zakynthos at the gate
15:40A3 224 to Kos leaves the gate
21 h 55 apart on the timetable, overnight
A3 224 leaves 21 h 55 after GQ 421 arrives on the timetable: more than half a day, so not a connection we count.