AA 4783 then BR 647 at O'Hare
Baltimore → Chicago → Anchorage
Timetable, Chicago time
12:59AA 4783 from Baltimore at the gate
12:10BR 647 to Anchorage leaves the gate
23 h 11 apart on the timetable, overnight
BR 647 leaves 23 h 11 after AA 4783 arrives on the timetable: more than half a day, so not a connection we count.