AA 2848 then UA 3916 at O'Hare
New York JFK → Chicago → New Orleans
Timetable, Chicago time
12:35AA 2848 from New York JFK at the gate
07:00UA 3916 to New Orleans leaves the gate
18 h 25 apart on the timetable, overnight
UA 3916 leaves 18 h 25 after AA 2848 arrives on the timetable: more than half a day, so not a connection we count.