TK 303 then GQ 671 at Istanbul
Baghdad → Istanbul → Athens
Timetable, Istanbul time
06:00TK 303 from Baghdad at the gate
22:45GQ 671 to Athens leaves the gate
16 h 45 apart on the timetable
GQ 671 leaves 16 h 45 after TK 303 arrives on the timetable: more than half a day, so not a connection we count.