AA 4023 then 7L 789 at O'Hare
Richmond → Chicago → Baku
Timetable, Chicago time
14:06AA 4023 from Richmond at the gate
10:007L 789 to Baku leaves the gate
19 h 54 apart on the timetable, overnight
7L 789 leaves 19 h 54 after AA 4023 arrives on the timetable: more than half a day, so not a connection we count.