AA 642 then DL 4929 at O'Hare
Dallas-Fort Worth → Chicago → New York JFK
Timetable, Chicago time
13:10AA 642 from Dallas-Fort Worth at the gate
10:30DL 4929 to New York JFK leaves the gate
21 h 20 apart on the timetable, overnight
DL 4929 leaves 21 h 20 after AA 642 arrives on the timetable: more than half a day, so not a connection we count.