TP 691 then EW 9603 at Lisbon
Luxembourg → Lisbon → Düsseldorf
Timetable, Lisbon time
14:05TP 691 from Luxembourg at the gate
13:30EW 9603 to Düsseldorf leaves the gate
23 h 25 apart on the timetable, overnight
EW 9603 leaves 23 h 25 after TP 691 arrives on the timetable: more than half a day, so not a connection we count.