AA 3620 then K4 810 at O'Hare
Huntsville → Chicago → Anchorage
Timetable, Chicago time
08:30AA 3620 from Huntsville at the gate
04:00K4 810 to Anchorage leaves the gate
19 h 30 apart on the timetable, overnight
K4 810 leaves 19 h 30 after AA 3620 arrives on the timetable: more than half a day, so not a connection we count.