AA 4476 then AA 1274 at Philadelphia
Louisville → Philadelphia → Raleigh-Durham
Timetable, Philadelphia time
09:30AA 4476 from Louisville at the gate
21:40AA 1274 to Raleigh-Durham leaves the gate
12 h 10 apart on the timetable
AA 1274 leaves 12 h 10 after AA 4476 arrives on the timetable: more than half a day, so not a connection we count.