AA 6247 then 7L 789 at O'Hare
Columbus (Ohio) → Chicago → Baku
Timetable, Chicago time
14:20AA 6247 from Columbus (Ohio) at the gate
10:007L 789 to Baku leaves the gate
19 h 40 apart on the timetable, overnight
7L 789 leaves 19 h 40 after AA 6247 arrives on the timetable: more than half a day, so not a connection we count.