DL 2804 then AA 6260 at O'Hare
Boston → Chicago → Birmingham (Alabama)
Timetable, Chicago time
22:36DL 2804 from Boston at the gate
21:59AA 6260 to Birmingham (Alabama) leaves the gate
23 h 23 apart on the timetable, overnight
AA 6260 leaves 23 h 23 after DL 2804 arrives on the timetable: more than half a day, so not a connection we count.