OS 554 then FR 9480 at Vienna
Rome → Vienna → Cologne
Timetable, Vienna time
16:45OS 554 from Rome at the gate
08:05FR 9480 to Cologne leaves the gate
15 h 20 apart on the timetable, overnight
FR 9480 leaves 15 h 20 after OS 554 arrives on the timetable: more than half a day, so not a connection we count.