BA 486 then IB 5462 at Barcelona
London Heathrow → Barcelona → Bordeaux
Timetable, Barcelona time
18:30BA 486 from London Heathrow at the gate
16:40IB 5462 to Bordeaux leaves the gate
22 h 10 apart on the timetable, overnight
IB 5462 leaves 22 h 10 after BA 486 arrives on the timetable: more than half a day, so not a connection we count.