EI 749 then EI 394 at Dublin
Bilbao → Dublin → Hamburg
Timetable, Dublin time
18:05EI 749 from Bilbao at the gate
17:35EI 394 to Hamburg leaves the gate
23 h 30 apart on the timetable, overnight
EI 394 leaves 23 h 30 after EI 749 arrives on the timetable: more than half a day, so not a connection we count.