UA 3920 then UA 701 at Houston
Orlando → Houston → San Juan
Timetable, Houston time
19:47UA 3920 from Orlando at the gate
15:05UA 701 to San Juan leaves the gate
19 h 18 apart on the timetable, overnight
UA 701 leaves 19 h 18 after UA 3920 arrives on the timetable: more than half a day, so not a connection we count.