ET 3608 then UA 2160 at O'Hare
Anchorage → Chicago → Washington National
Timetable, Chicago time
07:16ET 3608 from Anchorage at the gate
19:45UA 2160 to Washington National leaves the gate
12 h 29 apart on the timetable
UA 2160 leaves 12 h 29 after ET 3608 arrives on the timetable: more than half a day, so not a connection we count.