IB 648 then EW 9511 at Madrid
Rome → Madrid → Düsseldorf
Timetable, Madrid time
14:35IB 648 from Rome at the gatealso VY 5099, OB 5207, LA 5440, QR 6860, AA 8756
13:10EW 9511 to Düsseldorf leaves the gate
22 h 35 apart on the timetable, overnight
EW 9511 leaves 22 h 35 after IB 648 arrives on the timetable: more than half a day, so not a connection we count.