ET 741 then FR 5993 at Madrid
Porto → Madrid → London Stansted
Timetable, Madrid time
20:25ET 741 from Porto at the gate
13:20FR 5993 to London Stansted leaves the gate
16 h 55 apart on the timetable, overnight
FR 5993 leaves 16 h 55 after ET 741 arrives on the timetable: more than half a day, so not a connection we count.