AA 2572 then AA 1533 at Philadelphia
Hartford → Philadelphia → Houston
Timetable, Philadelphia time
07:22AA 2572 from Hartford at the gate
19:26AA 1533 to Houston leaves the gate
12 h 04 apart on the timetable
AA 1533 leaves 12 h 04 after AA 2572 arrives on the timetable: more than half a day, so not a connection we count.