BA 480 then QR 4700 at Barcelona
London Heathrow → Barcelona → Paris Orly
Timetable, Barcelona time
13:45BA 480 from London Heathrow at the gatealso IB 3662, QR 6297, AA 6818, VY 9558
10:15QR 4700 to Paris Orly leaves the gatealso IB 5436, LL 5436
20 h 30 apart on the timetable, overnight
QR 4700 leaves 20 h 30 after BA 480 arrives on the timetable: more than half a day, so not a connection we count.