AA 2618 then AA 6097 at Charlotte
Grand Rapids → Charlotte → Greenville-Spartanburg
Timetable, Charlotte time
07:39AA 2618 from Grand Rapids at the gate
07:15AA 6097 to Greenville-Spartanburg leaves the gate
23 h 36 apart on the timetable, overnight
AA 6097 leaves 23 h 36 after AA 2618 arrives on the timetable: more than half a day, so not a connection we count.