GQ 920 then IB 545 at Madrid
Athens → Madrid → Porto
Timetable, Madrid time
13:20GQ 920 from Athens at the gate
11:25IB 545 to Porto leaves the gatealso CX 1867, VY 5306, DT 6092, QR 6930, AA 8665
22 h 05 apart on the timetable, overnight
IB 545 leaves 22 h 05 after GQ 920 arrives on the timetable: more than half a day, so not a connection we count.