EC 7644 then FR 4166 at Lisbon
Zurich → Lisbon → Vienna
Timetable, Lisbon time
16:50EC 7644 from Zurich at the gatealso U2 7644
16:30FR 4166 to Vienna leaves the gate
23 h 40 apart on the timetable, overnight
FR 4166 leaves 23 h 40 after EC 7644 arrives on the timetable: more than half a day, so not a connection we count.