IB 5411 then QR 3677 at Barcelona
London Gatwick → Barcelona → Paris Orly
Timetable, Barcelona time
18:55IB 5411 from London Gatwick at the gatealso LL 5411, VY 7615, BA 8069
16:45QR 3677 to Paris Orly leaves the gatealso IB 5450, LL 5450
21 h 50 apart on the timetable, overnight
QR 3677 leaves 21 h 50 after IB 5411 arrives on the timetable: more than half a day, so not a connection we count.