FR 4546 then IB 424 at Barcelona
Porto → Barcelona → Madrid
Timetable, Barcelona time
23:25FR 4546 from Porto at the gate
21:15IB 424 to Madrid leaves the gatealso IB 424S, LA 1589, LL 3024, VY 5100, AY 5576, AV 6173, BA 7084, QR 8067
21 h 50 apart on the timetable, overnight
IB 424 leaves 21 h 50 after FR 4546 arrives on the timetable: more than half a day, so not a connection we count.