DL 752 then AA 2012 at LAX
New York JFK → Los Angeles → Las Vegas
Timetable, Los Angeles time
00:16DL 752 from New York JFK at the gate
12:37AA 2012 to Las Vegas leaves the gate
12 h 21 apart on the timetable
AA 2012 leaves 12 h 21 after DL 752 arrives on the timetable: more than half a day, so not a connection we count.