LA 5808 then FR 4545 at Barcelona
Santiago de Compostela → Barcelona → Porto
Timetable, Barcelona time
08:25LA 5808 from Santiago de Compostela at the gate
06:45FR 4545 to Porto leaves the gate
22 h 20 apart on the timetable, overnight
FR 4545 leaves 22 h 20 after LA 5808 arrives on the timetable: more than half a day, so not a connection we count.