BA 8067 then EW 7521 at Barcelona
London Gatwick → Barcelona → Hamburg
Timetable, Barcelona time
18:30BA 8067 from London Gatwick at the gate
10:10EW 7521 to Hamburg leaves the gate
15 h 40 apart on the timetable, overnight
EW 7521 leaves 15 h 40 after BA 8067 arrives on the timetable: more than half a day, so not a connection we count.