AA 2112 then AS 648 at Seattle
Chicago O'Hare → Seattle → Tucson
Timetable, Seattle time
09:39AA 2112 from Chicago O'Hare at the gate
08:58AS 648 to Tucson leaves the gate
23 h 19 apart on the timetable, overnight
AS 648 leaves 23 h 19 after AA 2112 arrives on the timetable: more than half a day, so not a connection we count.