IB 546 then EW 9511 at Madrid
Porto → Madrid → Düsseldorf
Timetable, Madrid time
14:45IB 546 from Porto at the gatealso LA 1686, CX 1854, VY 5307, AT 5486, DT 6093, BA 7101
13:10EW 9511 to Düsseldorf leaves the gate
22 h 25 apart on the timetable, overnight
EW 9511 leaves 22 h 25 after IB 546 arrives on the timetable: more than half a day, so not a connection we count.