AA 642 then AA 5001 at O'Hare
Dallas-Fort Worth → Chicago → Birmingham (Alabama)
Timetable, Chicago time
13:10AA 642 from Dallas-Fort Worth at the gate
10:30AA 5001 to Birmingham (Alabama) leaves the gate
21 h 20 apart on the timetable, overnight
AA 5001 leaves 21 h 20 after AA 642 arrives on the timetable: more than half a day, so not a connection we count.