U2 2703 then W4 6022 at Barcelona
Bristol → Barcelona → Rome
Timetable, Barcelona time
18:45U2 2703 from Bristol at the gate
15:15W4 6022 to Rome leaves the gate
20 h 30 apart on the timetable, overnight
W4 6022 leaves 20 h 30 after U2 2703 arrives on the timetable: more than half a day, so not a connection we count.