UA 4271 then UA 6086 at Houston
Brownsville → Houston → Shreveport
Timetable, Houston time
10:37UA 4271 from Brownsville at the gate
07:00UA 6086 to Shreveport leaves the gate
20 h 23 apart on the timetable, overnight
UA 6086 leaves 20 h 23 after UA 4271 arrives on the timetable: more than half a day, so not a connection we count.