GQ 213 then BA 635 at Athens
Heraklion → Athens → London Heathrow
Timetable, Athens time
17:40GQ 213 from Heraklion at the gate
17:00BA 635 to London Heathrow leaves the gate
23 h 20 apart on the timetable, overnight
BA 635 leaves 23 h 20 after GQ 213 arrives on the timetable: more than half a day, so not a connection we count.