A3 953 then GQ 670 at Athens
Riyadh → Athens → Istanbul
Timetable, Athens time
07:40A3 953 from Riyadh at the gate
07:00GQ 670 to Istanbul leaves the gate
23 h 20 apart on the timetable, overnight
GQ 670 leaves 23 h 20 after A3 953 arrives on the timetable: more than half a day, so not a connection we count.