AA 3827 then K4 810 at O'Hare
Rochester (ROC) → Chicago → Anchorage
Timetable, Chicago time
06:19AA 3827 from Rochester (ROC) at the gate
04:00K4 810 to Anchorage leaves the gate
21 h 41 apart on the timetable, overnight
K4 810 leaves 21 h 41 after AA 3827 arrives on the timetable: more than half a day, so not a connection we count.