FR 4768 then OS 335 at Vienna
Bologna → Vienna → London Heathrow
Timetable, Vienna time
17:50FR 4768 from Bologna at the gate
11:35OS 335 to London Heathrow leaves the gate
17 h 45 apart on the timetable, overnight
OS 335 leaves 17 h 45 after FR 4768 arrives on the timetable: more than half a day, so not a connection we count.