BA 951 then BA 1338 at Heathrow
Munich → London → Newcastle
Timetable, London time
18:30BA 951 from Munich at the gate
16:05BA 1338 to Newcastle leaves the gate
21 h 35 apart on the timetable, overnight
BA 1338 leaves 21 h 35 after BA 951 arrives on the timetable: more than half a day, so not a connection we count.