AA 153 then FX 9791 at O'Hare
Charlotte → Chicago → Anchorage
Timetable, Chicago time
11:42AA 153 from Charlotte at the gate
04:00FX 9791 to Anchorage leaves the gate
16 h 18 apart on the timetable, overnight
FX 9791 leaves 16 h 18 after AA 153 arrives on the timetable: more than half a day, so not a connection we count.