FR 1119 then FR 1814 at Fiumicino
Valletta → Rome → Porto
Timetable, Rome time
14:55FR 1119 from Valletta at the gate
11:00FR 1814 to Porto leaves the gate
20 h 05 apart on the timetable, overnight
FR 1814 leaves 20 h 05 after FR 1119 arrives on the timetable: more than half a day, so not a connection we count.