AA 4504 then UA 1677 at O'Hare
South Bend → Chicago → New York LaGuardia
Timetable, Chicago time
18:35AA 4504 from South Bend at the gate
17:00UA 1677 to New York LaGuardia leaves the gate
22 h 25 apart on the timetable, overnight
UA 1677 leaves 22 h 25 after AA 4504 arrives on the timetable: more than half a day, so not a connection we count.