OS 551 then FR 3181 at Fiumicino
Vienna → Rome → Barcelona
Timetable, Rome time
09:25OS 551 from Vienna at the gate
08:30FR 3181 to Barcelona leaves the gate
23 h 05 apart on the timetable, overnight
FR 3181 leaves 23 h 05 after OS 551 arrives on the timetable: more than half a day, so not a connection we count.