FR 3977 then QR 3638 at Barcelona
Dublin → Barcelona → Rome
Timetable, Barcelona time
21:10FR 3977 from Dublin at the gate
20:25QR 3638 to Rome leaves the gatealso IB 5770, LL 5770
23 h 15 apart on the timetable, overnight
QR 3638 leaves 23 h 15 after FR 3977 arrives on the timetable: more than half a day, so not a connection we count.