UA 3920 then UA 2158 at Houston
Orlando → Houston → Edmonton
Timetable, Houston time
19:47UA 3920 from Orlando at the gate
16:25UA 2158 to Edmonton leaves the gate
20 h 38 apart on the timetable, overnight
UA 2158 leaves 20 h 38 after UA 3920 arrives on the timetable: more than half a day, so not a connection we count.