LY 543 then A3 994 at Athens
Tel Aviv → Athens → Istanbul
Timetable, Athens time
21:20LY 543 from Tel Aviv at the gate
18:30A3 994 to Istanbul leaves the gate
21 h 10 apart on the timetable, overnight
A3 994 leaves 21 h 10 after LY 543 arrives on the timetable: more than half a day, so not a connection we count.