DL 1223 then DL 4137 at Atlanta
Cincinnati → Atlanta → Shreveport
Timetable, Atlanta time
16:33DL 1223 from Cincinnati at the gate
15:40DL 4137 to Shreveport leaves the gate
23 h 07 apart on the timetable, overnight
DL 4137 leaves 23 h 07 after DL 1223 arrives on the timetable: more than half a day, so not a connection we count.