A3 720 then EC 7667 at Lisbon
Athens → Lisbon → Luxembourg
Timetable, Lisbon time
11:05A3 720 from Athens at the gate
07:45EC 7667 to Luxembourg leaves the gate
20 h 40 apart on the timetable, overnight
EC 7667 leaves 20 h 40 after A3 720 arrives on the timetable: more than half a day, so not a connection we count.