BA 867 then BA 1332 at Heathrow
Budapest → London → Newcastle
Timetable, London time
14:15BA 867 from Budapest at the gate
11:45BA 1332 to Newcastle leaves the gate
21 h 30 apart on the timetable, overnight
BA 1332 leaves 21 h 30 after BA 867 arrives on the timetable: more than half a day, so not a connection we count.