OS 580 then FR 7356 at Vienna
Catania → Vienna → London Stansted
Timetable, Vienna time
11:50OS 580 from Catania at the gate
11:45FR 7356 to London Stansted leaves the gate
23 h 55 apart on the timetable, overnight
FR 7356 leaves 23 h 55 after OS 580 arrives on the timetable: more than half a day, so not a connection we count.