IB 5469 then IB 5834 at Barcelona
Lyon → Barcelona → London Gatwick
Timetable, Barcelona time
20:00IB 5469 from Lyon at the gatealso LL 5469, VY 8129
19:50IB 5834 to London Gatwick leaves the gatealso LL 5834, VY 7626, BA 8080
23 h 50 apart on the timetable, overnight
IB 5834 leaves 23 h 50 after IB 5469 arrives on the timetable: more than half a day, so not a connection we count.