DL 168 then LO 4704 at Barcelona
New York JFK → Barcelona → Lisbon
Timetable, Barcelona time
08:40DL 168 from New York JFK at the gatealso AF 3597, KL 6039
21:10LO 4704 to Lisbon leaves the gate
12 h 30 apart on the timetable
LO 4704 leaves 12 h 30 after DL 168 arrives on the timetable: more than half a day, so not a connection we count.