AA 3437 then 7L 789 at O'Hare
Rochester (ROC) → Chicago → Baku
Timetable, Chicago time
12:40AA 3437 from Rochester (ROC) at the gate
10:007L 789 to Baku leaves the gate
21 h 20 apart on the timetable, overnight
7L 789 leaves 21 h 20 after AA 3437 arrives on the timetable: more than half a day, so not a connection we count.