AA 3551 then BR 643 at O'Hare
Minneapolis → Chicago → Anchorage
Timetable, Chicago time
12:18AA 3551 from Minneapolis at the gate
11:55BR 643 to Anchorage leaves the gate
23 h 37 apart on the timetable, overnight
BR 643 leaves 23 h 37 after AA 3551 arrives on the timetable: more than half a day, so not a connection we count.