FR 4166 then BA 695 at Vienna
Lisbon → Vienna → London Heathrow
Timetable, Vienna time
21:00FR 4166 from Lisbon at the gate
14:15BA 695 to London Heathrow leaves the gate
17 h 15 apart on the timetable, overnight
BA 695 leaves 17 h 15 after FR 4166 arrives on the timetable: more than half a day, so not a connection we count.