GQ 219 then BA 641 at Athens
Heraklion → Athens → London Heathrow
Timetable, Athens time
12:20GQ 219 from Heraklion at the gate
07:55BA 641 to London Heathrow leaves the gate
19 h 35 apart on the timetable, overnight
BA 641 leaves 19 h 35 after GQ 219 arrives on the timetable: more than half a day, so not a connection we count.