LY 543 then BA 637 at Athens
Tel Aviv → Athens → London Heathrow
Timetable, Athens time
21:20LY 543 from Tel Aviv at the gate
20:00BA 637 to London Heathrow leaves the gate
22 h 40 apart on the timetable, overnight
BA 637 leaves 22 h 40 after LY 543 arrives on the timetable: more than half a day, so not a connection we count.