AA 2023 then BR 643 at O'Hare
Washington National → Chicago → Anchorage
Timetable, Chicago time
12:52AA 2023 from Washington National at the gate
11:55BR 643 to Anchorage leaves the gate
23 h 03 apart on the timetable, overnight
BR 643 leaves 23 h 03 after AA 2023 arrives on the timetable: more than half a day, so not a connection we count.