AA 788 then BR 643 at O'Hare
New York JFK → Chicago → Anchorage
Timetable, Chicago time
12:16AA 788 from New York JFK at the gate
11:55BR 643 to Anchorage leaves the gate
23 h 39 apart on the timetable, overnight
BR 643 leaves 23 h 39 after AA 788 arrives on the timetable: more than half a day, so not a connection we count.