UA 4717 then AA 314 at LAX
Monterey → Los Angeles → Las Vegas
Timetable, Los Angeles time
08:33UA 4717 from Monterey at the gate
21:00AA 314 to Las Vegas leaves the gate
12 h 27 apart on the timetable
AA 314 leaves 12 h 27 after UA 4717 arrives on the timetable: more than half a day, so not a connection we count.