AA 3918 then BR 643 at O'Hare
Greenville-Spartanburg → Chicago → Anchorage
Timetable, Chicago time
13:00AA 3918 from Greenville-Spartanburg at the gate
11:55BR 643 to Anchorage leaves the gate
22 h 55 apart on the timetable, overnight
BR 643 leaves 22 h 55 after AA 3918 arrives on the timetable: more than half a day, so not a connection we count.