TK 137 then TK 1887 at Istanbul
Medina → Istanbul → Vienna
Timetable, Istanbul time
05:40TK 137 from Medina at the gate
18:00TK 1887 to Vienna leaves the gate
12 h 20 apart on the timetable
TK 1887 leaves 12 h 20 after TK 137 arrives on the timetable: more than half a day, so not a connection we count.