DL 2368 then AA 3570 at O'Hare
Los Angeles → Chicago → Rochester (ROC)
Timetable, Chicago time
17:50DL 2368 from Los Angeles at the gate
17:15AA 3570 to Rochester (ROC) leaves the gate
23 h 25 apart on the timetable, overnight
AA 3570 leaves 23 h 25 after DL 2368 arrives on the timetable: more than half a day, so not a connection we count.