AA 177 then AA 2937 at Charlotte
Santa Ana → Charlotte → St Louis
Timetable, Charlotte time
16:47AA 177 from Santa Ana at the gate
16:34AA 2937 to St Louis leaves the gate
23 h 47 apart on the timetable, overnight
AA 2937 leaves 23 h 47 after AA 177 arrives on the timetable: more than half a day, so not a connection we count.