ET 3608 then AA 903 at O'Hare
Anchorage → Chicago → Washington National
Timetable, Chicago time
07:16ET 3608 from Anchorage at the gate
20:57AA 903 to Washington National leaves the gate
13 h 41 apart on the timetable
AA 903 leaves 13 h 41 after ET 3608 arrives on the timetable: more than half a day, so not a connection we count.