DL 1147 then UA 669 at O'Hare
Atlanta → Chicago → New York LaGuardia
Timetable, Chicago time
10:25DL 1147 from Atlanta at the gate
10:05UA 669 to New York LaGuardia leaves the gate
23 h 40 apart on the timetable, overnight
UA 669 leaves 23 h 40 after DL 1147 arrives on the timetable: more than half a day, so not a connection we count.