AA 6228 then K4 810 at O'Hare
Sioux Falls → Chicago → Anchorage
Timetable, Chicago time
09:10AA 6228 from Sioux Falls at the gate
04:00K4 810 to Anchorage leaves the gate
18 h 50 apart on the timetable, overnight
K4 810 leaves 18 h 50 after AA 6228 arrives on the timetable: more than half a day, so not a connection we count.