AA 1637 then AA 6097 at Charlotte
Washington → Charlotte → Greenville-Spartanburg
Timetable, Charlotte time
07:38AA 1637 from Washington at the gate
07:15AA 6097 to Greenville-Spartanburg leaves the gate
23 h 37 apart on the timetable, overnight
AA 6097 leaves 23 h 37 after AA 1637 arrives on the timetable: more than half a day, so not a connection we count.