BR 642 then 7L 789 at O'Hare
Anchorage → Chicago → Baku
Timetable, Chicago time
11:55BR 642 from Anchorage at the gate
10:007L 789 to Baku leaves the gate
22 h 05 apart on the timetable, overnight
7L 789 leaves 22 h 05 after BR 642 arrives on the timetable: more than half a day, so not a connection we count.