AA 2896 then AA 1580 at DFW
Chicago O'Hare → Dallas-Fort Worth → Tucson
Timetable, Dallas-Fort Worth time
00:43AA 2896 from Chicago O'Hare at the gate
21:15AA 1580 to Tucson leaves the gate
20 h 32 apart on the timetable
AA 1580 leaves 20 h 32 after AA 2896 arrives on the timetable: more than half a day, so not a connection we count.