7L 1312 then AA 315 at O'Hare
Anchorage → Chicago → Washington National
Timetable, Chicago time
12:097L 1312 from Anchorage at the gate
09:30AA 315 to Washington National leaves the gate
21 h 21 apart on the timetable, overnight
AA 315 leaves 21 h 21 after 7L 1312 arrives on the timetable: more than half a day, so not a connection we count.