IB 5857 then BA 495 at Barcelona
Manchester → Barcelona → London Heathrow
Timetable, Barcelona time
23:10IB 5857 from Manchester at the gatealso LL 5857, VY 7757, BA 8107
20:45BA 495 to London Heathrow leaves the gate
21 h 35 apart on the timetable, overnight
BA 495 leaves 21 h 35 after IB 5857 arrives on the timetable: more than half a day, so not a connection we count.