AA 2953 then AA 5258 at Charlotte
Los Angeles → Charlotte → Lexington
Timetable, Charlotte time
06:08AA 2953 from Los Angeles at the gate
18:11AA 5258 to Lexington leaves the gate
12 h 03 apart on the timetable
AA 5258 leaves 12 h 03 after AA 2953 arrives on the timetable: more than half a day, so not a connection we count.