LA 5745 then IB 5150 at Barcelona
Rome → Barcelona → Seville
Timetable, Barcelona time
01:25LA 5745 from Rome at the gate
15:45IB 5150 to Seville leaves the gate
14 h 20 apart on the timetable
IB 5150 leaves 14 h 20 after LA 5745 arrives on the timetable: more than half a day, so not a connection we count.