BA 1349 then BA 227 at Heathrow
Saint Helier → London → Atlanta
Timetable, London time
16:20BA 1349 from Saint Helier at the gate
15:35BA 227 to Atlanta leaves the gate
23 h 15 apart on the timetable, overnight
BA 227 leaves 23 h 15 after BA 1349 arrives on the timetable: more than half a day, so not a connection we count.