A3 702 then FR 572 at Madrid
Athens → Madrid → Porto
Timetable, Madrid time
17:50A3 702 from Athens at the gate
16:40FR 572 to Porto leaves the gate
22 h 50 apart on the timetable, overnight
FR 572 leaves 22 h 50 after A3 702 arrives on the timetable: more than half a day, so not a connection we count.