TK 2839 then GQ 671 at Istanbul
Trabzon → Istanbul → Athens
Timetable, Istanbul time
01:50TK 2839 from Trabzon at the gate
22:45GQ 671 to Athens leaves the gate
20 h 55 apart on the timetable
GQ 671 leaves 20 h 55 after TK 2839 arrives on the timetable: more than half a day, so not a connection we count.