AA 4504 then DL 4917 at O'Hare
South Bend → Chicago → New York JFK
Timetable, Chicago time
18:35AA 4504 from South Bend at the gate
18:00DL 4917 to New York JFK leaves the gate
23 h 25 apart on the timetable, overnight
DL 4917 leaves 23 h 25 after AA 4504 arrives on the timetable: more than half a day, so not a connection we count.