CV 251 then UA 729 at O'Hare
Anchorage → Chicago → Philadelphia
Timetable, Chicago time
19:00CV 251 from Anchorage at the gate
08:50UA 729 to Philadelphia leaves the gate
13 h 50 apart on the timetable, overnight
UA 729 leaves 13 h 50 after CV 251 arrives on the timetable: more than half a day, so not a connection we count.