BA 486 then QR 3677 at Barcelona
London Heathrow → Barcelona → Paris Orly
Timetable, Barcelona time
17:30BA 486 from London Heathrow at the gatealso IB 3667, AA 6822, QR 8342, VY 9564
16:45QR 3677 to Paris Orly leaves the gatealso IB 5450, LL 5450
23 h 15 apart on the timetable, overnight
QR 3677 leaves 23 h 15 after BA 486 arrives on the timetable: more than half a day, so not a connection we count.