LH 1915 then BA 953 at Munich
Palermo → Munich → London Heathrow
Timetable, Munich time
20:30LH 1915 from Palermo at the gate
18:25BA 953 to London Heathrow leaves the gate
21 h 55 apart on the timetable, overnight
BA 953 leaves 21 h 55 after LH 1915 arrives on the timetable: more than half a day, so not a connection we count.