BA 679 then BA 1340 at Heathrow
Istanbul → London → Newcastle
Timetable, London time
22:35BA 679 from Istanbul at the gate
21:05BA 1340 to Newcastle leaves the gate
22 h 30 apart on the timetable, overnight
BA 1340 leaves 22 h 30 after BA 679 arrives on the timetable: more than half a day, so not a connection we count.