AA 1038 then FX 9791 at O'Hare
Charlotte → Chicago → Anchorage
Timetable, Chicago time
12:22AA 1038 from Charlotte at the gate
04:00FX 9791 to Anchorage leaves the gate
15 h 38 apart on the timetable, overnight
FX 9791 leaves 15 h 38 after AA 1038 arrives on the timetable: more than half a day, so not a connection we count.