AA 383 then FX 9791 at O'Hare
Los Angeles → Chicago → Anchorage
Timetable, Chicago time
12:21AA 383 from Los Angeles at the gate
04:00FX 9791 to Anchorage leaves the gate
15 h 39 apart on the timetable, overnight
FX 9791 leaves 15 h 39 after AA 383 arrives on the timetable: more than half a day, so not a connection we count.