B6 111 then 7L 789 at O'Hare
Boston → Chicago → Baku
Timetable, Chicago time
12:00B6 111 from Boston at the gate
10:007L 789 to Baku leaves the gate
22 h apart on the timetable, overnight
7L 789 leaves 22 h after B6 111 arrives on the timetable: more than half a day, so not a connection we count.