U2 878 then U2 8071 at Gatwick
Saint Helier → London → Málaga
Timetable, London time
18:00U2 878 from Saint Helier at the gate
09:15U2 8071 to Málaga leaves the gate
15 h 15 apart on the timetable, overnight
U2 8071 leaves 15 h 15 after U2 878 arrives on the timetable: more than half a day, so not a connection we count.