RB 443 then TK 1031 at Istanbul
Damascus → Istanbul → Sofia
Timetable, Istanbul time
18:15RB 443 from Damascus at the gate
14:55TK 1031 to Sofia leaves the gate
20 h 40 apart on the timetable, overnight
TK 1031 leaves 20 h 40 after RB 443 arrives on the timetable: more than half a day, so not a connection we count.