U2 7643 then LX 8 at Zurich
Lisbon → Zurich → Chicago
Timetable, Zurich time
20:30U2 7643 from Lisbon at the gate
13:00LX 8 to Chicago leaves the gate
16 h 30 apart on the timetable, overnight
LX 8 leaves 16 h 30 after U2 7643 arrives on the timetable: more than half a day, so not a connection we count.