DL 2368 then AA 407 at O'Hare
Los Angeles → Chicago → Boston
Timetable, Chicago time
17:50DL 2368 from Los Angeles at the gate
17:11AA 407 to Boston leaves the gate
23 h 21 apart on the timetable, overnight
AA 407 leaves 23 h 21 after DL 2368 arrives on the timetable: more than half a day, so not a connection we count.