DL 1102 then DL 1892 at Atlanta
St Louis → Atlanta → Chattanooga
Timetable, Atlanta time
17:05DL 1102 from St Louis at the gate
14:30DL 1892 to Chattanooga leaves the gate
21 h 25 apart on the timetable, overnight
DL 1892 leaves 21 h 25 after DL 1102 arrives on the timetable: more than half a day, so not a connection we count.