DL 1223 then DL 2009 at Atlanta
Cincinnati → Atlanta → San Antonio
Timetable, Atlanta time
16:30DL 1223 from Cincinnati at the gate
14:10DL 2009 to San Antonio leaves the gate
21 h 40 apart on the timetable, overnight
DL 2009 leaves 21 h 40 after DL 1223 arrives on the timetable: more than half a day, so not a connection we count.