EW 2604 then VY 6503 at Lisbon
Stuttgart → Lisbon → Bilbao
Timetable, Lisbon time
16:45EW 2604 from Stuttgart at the gate
13:50VY 6503 to Bilbao leaves the gate
21 h 05 apart on the timetable, overnight
VY 6503 leaves 21 h 05 after EW 2604 arrives on the timetable: more than half a day, so not a connection we count.