AA 4649 then 7L 789 at O'Hare
Pittsburgh → Chicago → Baku
Timetable, Chicago time
11:00AA 4649 from Pittsburgh at the gate
10:007L 789 to Baku leaves the gate
23 h apart on the timetable, overnight
7L 789 leaves 23 h after AA 4649 arrives on the timetable: more than half a day, so not a connection we count.