ME 251 then A3 354 at Athens
Beirut → Athens → Santorini
Timetable, Athens time
10:15ME 251 from Beirut at the gate
10:00A3 354 to Santorini leaves the gate
23 h 45 apart on the timetable, overnight
A3 354 leaves 23 h 45 after ME 251 arrives on the timetable: more than half a day, so not a connection we count.