GQ 311 then A3 702 at Athens
Samos → Athens → Madrid
Timetable, Athens time
15:40GQ 311 from Samos at the gate
14:35A3 702 to Madrid leaves the gate
22 h 55 apart on the timetable, overnight
A3 702 leaves 22 h 55 after GQ 311 arrives on the timetable: more than half a day, so not a connection we count.