CX 251 then BA 1338 at Heathrow
Hong Kong → London → Newcastle
Timetable, London time
05:25CX 251 from Hong Kong at the gate
19:15BA 1338 to Newcastle leaves the gate
13 h 50 apart on the timetable
BA 1338 leaves 13 h 50 after CX 251 arrives on the timetable: more than half a day, so not a connection we count.