BA 773 then BA 1340 at Heathrow
Oslo → London → Newcastle
Timetable, London time
22:00BA 773 from Oslo at the gate
21:05BA 1340 to Newcastle leaves the gate
23 h 05 apart on the timetable, overnight
BA 1340 leaves 23 h 05 after BA 773 arrives on the timetable: more than half a day, so not a connection we count.