TK 1907 then LX 1390 at Zurich
Istanbul → Zurich → Sofia
Timetable, Zurich time
10:00TK 1907 from Istanbul at the gate
07:15LX 1390 to Sofia leaves the gate
21 h 15 apart on the timetable, overnight
LX 1390 leaves 21 h 15 after TK 1907 arrives on the timetable: more than half a day, so not a connection we count.