AA 5878 then AA 2654 at Charlotte
Salisbury → Charlotte → Las Vegas
Timetable, Charlotte time
07:57AA 5878 from Salisbury at the gate
20:17AA 2654 to Las Vegas leaves the gate
12 h 20 apart on the timetable
AA 2654 leaves 12 h 20 after AA 5878 arrives on the timetable: more than half a day, so not a connection we count.