BA 486 then QR 3624 at Barcelona
London Heathrow → Barcelona → Bordeaux
Timetable, Barcelona time
18:30BA 486 from London Heathrow at the gatealso IB 3667, AA 6822, QR 8342, VY 9564
16:40QR 3624 to Bordeaux leaves the gatealso LL 5462, VY 8122
22 h 10 apart on the timetable, overnight
QR 3624 leaves 22 h 10 after BA 486 arrives on the timetable: more than half a day, so not a connection we count.