CV 21 then 5X 609 at O'Hare
Anchorage → Chicago → Philadelphia
Timetable, Chicago time
22:27CV 21 from Anchorage at the gate
22:005X 609 to Philadelphia leaves the gate
23 h 33 apart on the timetable, overnight
5X 609 leaves 23 h 33 after CV 21 arrives on the timetable: more than half a day, so not a connection we count.