UA 320 then UA 6086 at Houston
Denver → Houston → Shreveport
Timetable, Houston time
08:33UA 320 from Denver at the gate
07:00UA 6086 to Shreveport leaves the gate
22 h 27 apart on the timetable, overnight
UA 6086 leaves 22 h 27 after UA 320 arrives on the timetable: more than half a day, so not a connection we count.