UA 697 then UA 6086 at Houston
Washington National → Houston → Shreveport
Timetable, Houston time
10:54UA 697 from Washington National at the gate
07:00UA 6086 to Shreveport leaves the gate
20 h 06 apart on the timetable, overnight
UA 6086 leaves 20 h 06 after UA 697 arrives on the timetable: more than half a day, so not a connection we count.