AA 5278 then AA 1153 at Charlotte
Lexington → Charlotte → San Antonio
Timetable, Charlotte time
07:56AA 5278 from Lexington at the gate
20:44AA 1153 to San Antonio leaves the gate
12 h 48 apart on the timetable
AA 1153 leaves 12 h 48 after AA 5278 arrives on the timetable: more than half a day, so not a connection we count.