DL 168 then QR 3514 at Barcelona
New York JFK → Barcelona → Bilbao
Timetable, Barcelona time
08:35DL 168 from New York JFK at the gatealso AF 3597, KL 6039
08:00QR 3514 to Bilbao leaves the gate
23 h 25 apart on the timetable, overnight
QR 3514 leaves 23 h 25 after DL 168 arrives on the timetable: more than half a day, so not a connection we count.