FR 4596 then IB 2376 at Barcelona
Porto → Barcelona → Valencia
Timetable, Barcelona time
00:50FR 4596 from Porto at the gate
18:55IB 2376 to Valencia leaves the gatealso LL 3106, AY 5583, VY 5776, QR 8075
18 h 05 apart on the timetable
IB 2376 leaves 18 h 05 after FR 4596 arrives on the timetable: more than half a day, so not a connection we count.