AA 2879 then AA 1642 at Charlotte
Chicago O'Hare → Charlotte → Greenville-Spartanburg
Timetable, Charlotte time
14:48AA 2879 from Chicago O'Hare at the gate
14:30AA 1642 to Greenville-Spartanburg leaves the gate
23 h 42 apart on the timetable, overnight
AA 1642 leaves 23 h 42 after AA 2879 arrives on the timetable: more than half a day, so not a connection we count.