UA 64 then EC 7667 at Lisbon
Newark → Lisbon → Luxembourg
Timetable, Lisbon time
08:10UA 64 from Newark at the gate
07:45EC 7667 to Luxembourg leaves the gate
23 h 35 apart on the timetable, overnight
EC 7667 leaves 23 h 35 after UA 64 arrives on the timetable: more than half a day, so not a connection we count.