UA 3280 then UA 2807 at Houston
Greensboro → Houston → Los Angeles
Timetable, Houston time
20:30UA 3280 from Greensboro at the gate
18:46UA 2807 to Los Angeles leaves the gate
22 h 16 apart on the timetable, overnight
UA 2807 leaves 22 h 16 after UA 3280 arrives on the timetable: more than half a day, so not a connection we count.