AA 3695 then LF 7920 at O'Hare
Bismarck → Chicago → BKX
Timetable, Chicago time
15:30AA 3695 from Bismarck at the gate
13:45LF 7920 to BKX leaves the gate
22 h 15 apart on the timetable, overnight
LF 7920 leaves 22 h 15 after AA 3695 arrives on the timetable: more than half a day, so not a connection we count.