AA 3960 then 7L 789 at O'Hare
Valparaiso → Chicago → Baku
Timetable, Chicago time
14:34AA 3960 from Valparaiso at the gate
10:007L 789 to Baku leaves the gate
19 h 26 apart on the timetable, overnight
7L 789 leaves 19 h 26 after AA 3960 arrives on the timetable: more than half a day, so not a connection we count.