IB 2471 then QR 4686 at Barcelona
Leon → Barcelona → Lisbon
Timetable, Barcelona time
20:25IB 2471 from Leon at the gatealso LL 3101, VY 5871, QR 6959
15:50QR 4686 to Lisbon leaves the gatealso IB 5114, LL 5114
19 h 25 apart on the timetable, overnight
QR 4686 leaves 19 h 25 after IB 2471 arrives on the timetable: more than half a day, so not a connection we count.