AA 4504 then 7L 789 at O'Hare
South Bend → Chicago → Baku
Timetable, Chicago time
18:35AA 4504 from South Bend at the gate
10:007L 789 to Baku leaves the gate
15 h 25 apart on the timetable, overnight
7L 789 leaves 15 h 25 after AA 4504 arrives on the timetable: more than half a day, so not a connection we count.