IB 5341 then FR 8215 at Barcelona
Rome → Barcelona → London Stansted
Timetable, Barcelona time
17:05IB 5341 from Rome at the gatealso LL 5341, VY 6011
13:15FR 8215 to London Stansted leaves the gate
20 h 10 apart on the timetable, overnight
FR 8215 leaves 20 h 10 after IB 5341 arrives on the timetable: more than half a day, so not a connection we count.