QR 3522 then BA 495 at Barcelona
Málaga → Barcelona → London Heathrow
Timetable, Barcelona time
00:55QR 3522 from Málaga at the gate
20:45BA 495 to London Heathrow leaves the gatealso IB 3821, AA 6817, CX 7171, VY 9614
19 h 50 apart on the timetable
BA 495 leaves 19 h 50 after QR 3522 arrives on the timetable: more than half a day, so not a connection we count.