FR 270 then TK 1468 at Barcelona
Milan → Barcelona → Istanbul
Timetable, Barcelona time
17:10FR 270 from Milan at the gate
14:35TK 1468 to Istanbul leaves the gate
21 h 25 apart on the timetable, overnight
TK 1468 leaves 21 h 25 after FR 270 arrives on the timetable: more than half a day, so not a connection we count.