BM 516 then UX 1684 at Istanbul
Benghazi → Istanbul → Madrid
Timetable, Istanbul time
20:30BM 516 from Benghazi at the gate
16:45UX 1684 to Madrid leaves the gate
20 h 15 apart on the timetable, overnight
UX 1684 leaves 20 h 15 after BM 516 arrives on the timetable: more than half a day, so not a connection we count.