DL 996 then UA 2409 at LAX
Atlanta → Los Angeles → Chicago O'Hare
Timetable, Los Angeles time
08:59DL 996 from Atlanta at the gate
23:47UA 2409 to Chicago O'Hare leaves the gate
14 h 48 apart on the timetable
UA 2409 leaves 14 h 48 after DL 996 arrives on the timetable: more than half a day, so not a connection we count.