BA 180 then BA 1338 at Heathrow
New York JFK → London → Newcastle
Timetable, London time
05:50BA 180 from New York JFK at the gate
19:15BA 1338 to Newcastle leaves the gate
13 h 25 apart on the timetable
BA 1338 leaves 13 h 25 after BA 180 arrives on the timetable: more than half a day, so not a connection we count.