TP 931 then VY 6503 at Lisbon
Zurich → Lisbon → Bilbao
Timetable, Lisbon time
15:35TP 931 from Zurich at the gate
13:50VY 6503 to Bilbao leaves the gate
22 h 15 apart on the timetable, overnight
VY 6503 leaves 22 h 15 after TP 931 arrives on the timetable: more than half a day, so not a connection we count.