EW 7520 then IB 5408 at Barcelona
Hamburg → Barcelona → London Gatwick
Timetable, Barcelona time
16:20EW 7520 from Hamburg at the gate
13:25IB 5408 to London Gatwick leaves the gatealso LL 5408, VY 7612
21 h 05 apart on the timetable, overnight
IB 5408 leaves 21 h 05 after EW 7520 arrives on the timetable: more than half a day, so not a connection we count.