LL 5509 then EC 7694 at Barcelona
Bilbao → Barcelona → Lisbon
Timetable, Barcelona time
20:50LL 5509 from Bilbao at the gate
15:30EC 7694 to Lisbon leaves the gate
18 h 40 apart on the timetable, overnight
EC 7694 leaves 18 h 40 after LL 5509 arrives on the timetable: more than half a day, so not a connection we count.