UA 3304 then AA 6097 at Charlotte
Pittsburgh → Charlotte → Greenville-Spartanburg
Timetable, Charlotte time
13:00UA 3304 from Pittsburgh at the gate
07:15AA 6097 to Greenville-Spartanburg leaves the gate
18 h 15 apart on the timetable, overnight
AA 6097 leaves 18 h 15 after UA 3304 arrives on the timetable: more than half a day, so not a connection we count.