ET 3608 then AA 3177 at O'Hare
Anchorage → Chicago → Philadelphia
Timetable, Chicago time
07:16ET 3608 from Anchorage at the gate
21:11AA 3177 to Philadelphia leaves the gate
13 h 55 apart on the timetable
AA 3177 leaves 13 h 55 after ET 3608 arrives on the timetable: more than half a day, so not a connection we count.