EC 7668 then EC 7605 at Lisbon
Luxembourg → Lisbon → Bordeaux
Timetable, Lisbon time
21:55EC 7668 from Luxembourg at the gate
17:10EC 7605 to Bordeaux leaves the gate
19 h 15 apart on the timetable, overnight
EC 7605 leaves 19 h 15 after EC 7668 arrives on the timetable: more than half a day, so not a connection we count.