QR 3717 then U2 8058 at Barcelona
Rome → Barcelona → London Gatwick
Timetable, Barcelona time
19:55QR 3717 from Rome at the gatealso LL 5343, VY 6013
19:45U2 8058 to London Gatwick leaves the gate
23 h 50 apart on the timetable, overnight
U2 8058 leaves 23 h 50 after QR 3717 arrives on the timetable: more than half a day, so not a connection we count.