AA 880 then 7L 789 at O'Hare
Philadelphia → Chicago → Baku
Timetable, Chicago time
12:19AA 880 from Philadelphia at the gate
10:007L 789 to Baku leaves the gate
21 h 41 apart on the timetable, overnight
7L 789 leaves 21 h 41 after AA 880 arrives on the timetable: more than half a day, so not a connection we count.