QR 3702 then BA 487 at Barcelona
Berlin → Barcelona → London Heathrow
Timetable, Barcelona time
21:00QR 3702 from Berlin at the gate
20:20BA 487 to London Heathrow leaves the gate
23 h 20 apart on the timetable, overnight
BA 487 leaves 23 h 20 after QR 3702 arrives on the timetable: more than half a day, so not a connection we count.