BA 630 then GQ 302 at Athens
London Heathrow → Athens → Mytilene
Timetable, Athens time
14:00BA 630 from London Heathrow at the gate
12:55GQ 302 to Mytilene leaves the gate
22 h 55 apart on the timetable, overnight
GQ 302 leaves 22 h 55 after BA 630 arrives on the timetable: more than half a day, so not a connection we count.