EI 406 then FR 1814 at Fiumicino
Dublin → Rome → Porto
Timetable, Rome time
19:55EI 406 from Dublin at the gate
11:00FR 1814 to Porto leaves the gate
15 h 05 apart on the timetable, overnight
FR 1814 leaves 15 h 05 after EI 406 arrives on the timetable: more than half a day, so not a connection we count.