AA 3634 then 7L 789 at O'Hare
La Crosse → Chicago → Baku
Timetable, Chicago time
13:50AA 3634 from La Crosse at the gate
10:007L 789 to Baku leaves the gate
20 h 10 apart on the timetable, overnight
7L 789 leaves 20 h 10 after AA 3634 arrives on the timetable: more than half a day, so not a connection we count.