AA 3175 then AA 2937 at Charlotte
Los Angeles → Charlotte → St Louis
Timetable, Charlotte time
17:25AA 3175 from Los Angeles at the gate
16:34AA 2937 to St Louis leaves the gate
23 h 09 apart on the timetable, overnight
AA 2937 leaves 23 h 09 after AA 3175 arrives on the timetable: more than half a day, so not a connection we count.