DL 1656 then DL 1403 at Atlanta
Charlotte → Atlanta → St Louis
Timetable, Atlanta time
07:55DL 1656 from Charlotte at the gate
23:10DL 1403 to St Louis leaves the gate
15 h 15 apart on the timetable
DL 1403 leaves 15 h 15 after DL 1656 arrives on the timetable: more than half a day, so not a connection we count.