QR 3714 then EC 8064 at Barcelona
Rome → Barcelona → London Gatwick
Timetable, Barcelona time
11:35QR 3714 from Rome at the gatealso IB 5331, LL 5331, VY 6001
07:10EC 8064 to London Gatwick leaves the gate
19 h 35 apart on the timetable, overnight
EC 8064 leaves 19 h 35 after QR 3714 arrives on the timetable: more than half a day, so not a connection we count.