UA 226 then UA 6086 at Houston
Boston → Houston → Shreveport
Timetable, Houston time
10:51UA 226 from Boston at the gate
07:00UA 6086 to Shreveport leaves the gate
20 h 09 apart on the timetable, overnight
UA 6086 leaves 20 h 09 after UA 226 arrives on the timetable: more than half a day, so not a connection we count.