CI 5240 then AA 1725 at O'Hare
Anchorage → Chicago → Philadelphia
Timetable, Chicago time
13:59CI 5240 from Anchorage at the gate
08:29AA 1725 to Philadelphia leaves the gate
18 h 30 apart on the timetable, overnight
AA 1725 leaves 18 h 30 after CI 5240 arrives on the timetable: more than half a day, so not a connection we count.