WN 3402 then AA 3216 at Atlanta
St Louis → Atlanta → Philadelphia
Timetable, Atlanta time
19:20WN 3402 from St Louis at the gate
18:29AA 3216 to Philadelphia leaves the gate
23 h 09 apart on the timetable, overnight
AA 3216 leaves 23 h 09 after WN 3402 arrives on the timetable: more than half a day, so not a connection we count.