UA 3920 then AA 2667 at Houston
Orlando → Houston → Philadelphia
Timetable, Houston time
19:47UA 3920 from Orlando at the gate
12:46AA 2667 to Philadelphia leaves the gate
16 h 59 apart on the timetable, overnight
AA 2667 leaves 16 h 59 after UA 3920 arrives on the timetable: more than half a day, so not a connection we count.