DL 1223 then AA 5250 at Atlanta
Cincinnati → Atlanta → Philadelphia
Timetable, Atlanta time
16:33DL 1223 from Cincinnati at the gate
12:31AA 5250 to Philadelphia leaves the gate
19 h 58 apart on the timetable, overnight
AA 5250 leaves 19 h 58 after DL 1223 arrives on the timetable: more than half a day, so not a connection we count.