U2 7643 then LX 644 at Zurich
Lisbon → Zurich → Paris Charles de Gaulle
Timetable, Zurich time
20:30U2 7643 from Lisbon at the gate
17:40LX 644 to Paris Charles de Gaulle leaves the gate
21 h 10 apart on the timetable, overnight
LX 644 leaves 21 h 10 after U2 7643 arrives on the timetable: more than half a day, so not a connection we count.