F9 4702 then AA 597 at Atlanta
Austin → Atlanta → Philadelphia
Timetable, Atlanta time
19:10F9 4702 from Austin at the gate
18:56AA 597 to Philadelphia leaves the gate
23 h 46 apart on the timetable, overnight
AA 597 leaves 23 h 46 after F9 4702 arrives on the timetable: more than half a day, so not a connection we count.