K4 601 then 5X 609 at O'Hare
Anchorage → Chicago → Philadelphia
Timetable, Chicago time
01:45K4 601 from Anchorage at the gate
22:005X 609 to Philadelphia leaves the gate
20 h 15 apart on the timetable
5X 609 leaves 20 h 15 after K4 601 arrives on the timetable: more than half a day, so not a connection we count.