AA 3918 then FX 9791 at O'Hare
Greenville-Spartanburg → Chicago → Anchorage
Timetable, Chicago time
13:00AA 3918 from Greenville-Spartanburg at the gate
04:00FX 9791 to Anchorage leaves the gate
15 h apart on the timetable, overnight
FX 9791 leaves 15 h after AA 3918 arrives on the timetable: more than half a day, so not a connection we count.