UA 6199 then UA 6086 at Houston
Silao → Houston → Shreveport
Timetable, Houston time
08:05UA 6199 from Silao at the gate
07:00UA 6086 to Shreveport leaves the gate
22 h 55 apart on the timetable, overnight
UA 6086 leaves 22 h 55 after UA 6199 arrives on the timetable: more than half a day, so not a connection we count.