DL 2368 then AA 1812 at O'Hare
Los Angeles → Chicago → Miami
Timetable, Chicago time
17:50DL 2368 from Los Angeles at the gate
16:43AA 1812 to Miami leaves the gate
22 h 53 apart on the timetable, overnight
AA 1812 leaves 22 h 53 after DL 2368 arrives on the timetable: more than half a day, so not a connection we count.