GateConnections

AA 1520 then AA 9978 at Philadelphia

Houston → Philadelphia → Albany (New York)

Timetable, Philadelphia time

11:32AA 1520 from Houston at the gate

10:46AA 9978 to Albany (New York) leaves the gate

23 h 14 apart on the timetable, overnight

AA 9978 leaves 23 h 14 after AA 1520 arrives on the timetable: more than half a day, so not a connection we count.