BA 1347 then KL 1004 at Heathrow
Saint Helier → London → Amsterdam
Timetable, London time
11:45BA 1347 from Saint Helier at the gate
10:00KL 1004 to Amsterdam leaves the gate
22 h 15 apart on the timetable, overnight
KL 1004 leaves 22 h 15 after BA 1347 arrives on the timetable: more than half a day, so not a connection we count.