BA 478 then QR 4700 at Barcelona
London Heathrow → Barcelona → Paris Orly
Timetable, Barcelona time
12:40BA 478 from London Heathrow at the gate
10:10QR 4700 to Paris Orly leaves the gatealso IB 5436, LL 5436
21 h 30 apart on the timetable, overnight
QR 4700 leaves 21 h 30 after BA 478 arrives on the timetable: more than half a day, so not a connection we count.