FR 270 then QR 4686 at Barcelona
Milan → Barcelona → Lisbon
Timetable, Barcelona time
17:55FR 270 from Milan at the gate
15:50QR 4686 to Lisbon leaves the gatealso IB 5114, LL 5114
21 h 55 apart on the timetable, overnight
QR 4686 leaves 21 h 55 after FR 270 arrives on the timetable: more than half a day, so not a connection we count.