TK 2221 then GQ 671 at Istanbul
Gaziantep → Istanbul → Athens
Timetable, Istanbul time
11:30TK 2221 from Gaziantep at the gate
10:30GQ 671 to Athens leaves the gate
23 h apart on the timetable, overnight
GQ 671 leaves 23 h after TK 2221 arrives on the timetable: more than half a day, so not a connection we count.