FR 10 then IB 423 at Madrid
Dublin → Madrid → Barcelona
Timetable, Madrid time
22:35FR 10 from Dublin at the gate
19:10IB 423 to Barcelona leaves the gatealso LA 1684, LL 3023, OB 5010, VY 5063, AV 6072, QR 6918
20 h 35 apart on the timetable, overnight
IB 423 leaves 20 h 35 after FR 10 arrives on the timetable: more than half a day, so not a connection we count.