BA 1333 then BA 275 at Heathrow
Newcastle → London → Las Vegas
Timetable, London time
16:20BA 1333 from Newcastle at the gate
16:05BA 275 to Las Vegas leaves the gate
23 h 45 apart on the timetable, overnight
BA 275 leaves 23 h 45 after BA 1333 arrives on the timetable: more than half a day, so not a connection we count.