BA 2817 then U2 8007 at Gatwick
Algiers → London → Seville
Timetable, London time
16:10BA 2817 from Algiers at the gate
15:55U2 8007 to Seville leaves the gate
23 h 45 apart on the timetable, overnight
U2 8007 leaves 23 h 45 after BA 2817 arrives on the timetable: more than half a day, so not a connection we count.