AA 740 then EC 1704 at Madrid
Philadelphia → Madrid → Nice
Timetable, Madrid time
08:55AA 740 from Philadelphia at the gatealso BA 1605, AY 3812, IB 4674
21:20EC 1704 to Nice leaves the gate
12 h 25 apart on the timetable
EC 1704 leaves 12 h 25 after AA 740 arrives on the timetable: more than half a day, so not a connection we count.