K4 601 then AA 2548 at O'Hare
Anchorage → Chicago → Philadelphia
Timetable, Chicago time
03:10K4 601 from Anchorage at the gate
19:20AA 2548 to Philadelphia leaves the gate
16 h 10 apart on the timetable
AA 2548 leaves 16 h 10 after K4 601 arrives on the timetable: more than half a day, so not a connection we count.