EC 1703 then AA 741 at Madrid
Nice → Madrid → Philadelphia
Timetable, Madrid time
20:40EC 1703 from Nice at the gate
13:15AA 741 to Philadelphia leaves the gatealso BA 1606, AY 3813, IB 4675
16 h 35 apart on the timetable, overnight
AA 741 leaves 16 h 35 after EC 1703 arrives on the timetable: more than half a day, so not a connection we count.