KL 1522 then HV 6003 at Schiphol
Bilbao → Amsterdam → Porto
Timetable, Amsterdam time
08:55KL 1522 from Bilbao at the gate
06:50HV 6003 to Porto leaves the gate
21 h 55 apart on the timetable, overnight
HV 6003 leaves 21 h 55 after KL 1522 arrives on the timetable: more than half a day, so not a connection we count.