K4 529 then AA 2840 at O'Hare
Anchorage → Chicago → Philadelphia
Timetable, Chicago time
15:32K4 529 from Anchorage at the gate
15:21AA 2840 to Philadelphia leaves the gate
23 h 49 apart on the timetable, overnight
AA 2840 leaves 23 h 49 after K4 529 arrives on the timetable: more than half a day, so not a connection we count.