TK 1710 then GQ 671 at Istanbul
Stuttgart → Istanbul → Athens
Timetable, Istanbul time
12:00TK 1710 from Stuttgart at the gate
10:30GQ 671 to Athens leaves the gate
22 h 30 apart on the timetable, overnight
GQ 671 leaves 22 h 30 after TK 1710 arrives on the timetable: more than half a day, so not a connection we count.