TK 1066 then GQ 671 at Istanbul
Constanta → Istanbul → Athens
Timetable, Istanbul time
11:55TK 1066 from Constanta at the gate
10:30GQ 671 to Athens leaves the gate
22 h 35 apart on the timetable, overnight
GQ 671 leaves 22 h 35 after TK 1066 arrives on the timetable: more than half a day, so not a connection we count.