UA 3920 then AS 439 at Houston
Orlando → Houston → Seattle
Timetable, Houston time
19:47UA 3920 from Orlando at the gate
14:27AS 439 to Seattle leaves the gate
18 h 40 apart on the timetable, overnight
AS 439 leaves 18 h 40 after UA 3920 arrives on the timetable: more than half a day, so not a connection we count.