AA 788 then FX 9791 at O'Hare
New York JFK → Chicago → Anchorage
Timetable, Chicago time
12:16AA 788 from New York JFK at the gate
04:00FX 9791 to Anchorage leaves the gate
15 h 44 apart on the timetable, overnight
FX 9791 leaves 15 h 44 after AA 788 arrives on the timetable: more than half a day, so not a connection we count.