W4 6048 then FR 1644 at Fiumicino
Porto → Rome → Vienna
Timetable, Rome time
18:20W4 6048 from Porto at the gate
18:15FR 1644 to Vienna leaves the gate
23 h 55 apart on the timetable, overnight
FR 1644 leaves 23 h 55 after W4 6048 arrives on the timetable: more than half a day, so not a connection we count.