IB 5407 then EW 7521 at Barcelona
London Gatwick → Barcelona → Hamburg
Timetable, Barcelona time
17:40IB 5407 from London Gatwick at the gatealso LL 5407, VY 7611
10:10EW 7521 to Hamburg leaves the gate
16 h 30 apart on the timetable, overnight
EW 7521 leaves 16 h 30 after IB 5407 arrives on the timetable: more than half a day, so not a connection we count.