IB 578 then FR 572 at Madrid
Paris Charles de Gaulle → Madrid → Porto
Timetable, Madrid time
19:25IB 578 from Paris Charles de Gaulle at the gate
16:40FR 572 to Porto leaves the gate
21 h 15 apart on the timetable, overnight
FR 572 leaves 21 h 15 after IB 578 arrives on the timetable: more than half a day, so not a connection we count.