UA 3920 then AA 5532 at Houston
Orlando → Houston → Washington National
Timetable, Houston time
19:47UA 3920 from Orlando at the gate
17:20AA 5532 to Washington National leaves the gate
21 h 33 apart on the timetable, overnight
AA 5532 leaves 21 h 33 after UA 3920 arrives on the timetable: more than half a day, so not a connection we count.