AA 3539 then FX 9791 at O'Hare
Moline → Chicago → Anchorage
Timetable, Chicago time
12:36AA 3539 from Moline at the gate
04:00FX 9791 to Anchorage leaves the gate
15 h 24 apart on the timetable, overnight
FX 9791 leaves 15 h 24 after AA 3539 arrives on the timetable: more than half a day, so not a connection we count.