TK 1890 then GQ 671 at Istanbul
Vienna → Istanbul → Athens
Timetable, Istanbul time
11:40TK 1890 from Vienna at the gate
10:30GQ 671 to Athens leaves the gate
22 h 50 apart on the timetable, overnight
GQ 671 leaves 22 h 50 after TK 1890 arrives on the timetable: more than half a day, so not a connection we count.