ET 3608 then AA 1632 at O'Hare
Anchorage → Chicago → Tucson
Timetable, Chicago time
07:16ET 3608 from Anchorage at the gate
20:56AA 1632 to Tucson leaves the gate
13 h 40 apart on the timetable
AA 1632 leaves 13 h 40 after ET 3608 arrives on the timetable: more than half a day, so not a connection we count.