EI 722 then BA 1338 at Heathrow
Cork → London → Newcastle
Timetable, London time
18:50EI 722 from Cork at the gate
16:05BA 1338 to Newcastle leaves the gate
21 h 15 apart on the timetable, overnight
BA 1338 leaves 21 h 15 after EI 722 arrives on the timetable: more than half a day, so not a connection we count.