QR 3760 then BA 489 at Barcelona
Algiers → Barcelona → London Heathrow
Timetable, Barcelona time
00:10QR 3760 from Algiers at the gate
19:25BA 489 to London Heathrow leaves the gatealso AA 7087, VY 9612
19 h 15 apart on the timetable
BA 489 leaves 19 h 15 after QR 3760 arrives on the timetable: more than half a day, so not a connection we count.