EC 1703 then AA 749 at Madrid
Nice → Madrid → Charlotte
Timetable, Madrid time
20:40EC 1703 from Nice at the gate
13:00AA 749 to Charlotte leaves the gatealso BA 1612, AY 3817, IB 4977
16 h 20 apart on the timetable, overnight
AA 749 leaves 16 h 20 after EC 1703 arrives on the timetable: more than half a day, so not a connection we count.