IB 548 then A3 1777 at Madrid
Porto → Madrid → Lisbon
Timetable, Madrid time
18:55IB 548 from Porto at the gate
18:00A3 1777 to Lisbon leaves the gate
23 h 05 apart on the timetable, overnight
A3 1777 leaves 23 h 05 after IB 548 arrives on the timetable: more than half a day, so not a connection we count.