BA 1347 then BA 570 at Heathrow
Saint Helier → London → Milan Linate
Timetable, London time
11:45BA 1347 from Saint Helier at the gate
10:20BA 570 to Milan Linate leaves the gate
22 h 35 apart on the timetable, overnight
BA 570 leaves 22 h 35 after BA 1347 arrives on the timetable: more than half a day, so not a connection we count.