BA 1349 then UA 147 at Heathrow
Saint Helier → London → Newark
Timetable, London time
16:20BA 1349 from Saint Helier at the gate
12:50UA 147 to Newark leaves the gate
20 h 30 apart on the timetable, overnight
UA 147 leaves 20 h 30 after BA 1349 arrives on the timetable: more than half a day, so not a connection we count.