IB 5397 then IB 5480 at Barcelona
London Gatwick → Barcelona → Nantes
Timetable, Barcelona time
11:40IB 5397 from London Gatwick at the gatealso LL 5397, VY 7601, BA 8057
10:45IB 5480 to Nantes leaves the gatealso VY 8140
23 h 05 apart on the timetable, overnight
IB 5480 leaves 23 h 05 after IB 5397 arrives on the timetable: more than half a day, so not a connection we count.