UA 5195 then AA 1968 at O'Hare
Macon → Chicago → Tucson
Timetable, Chicago time
14:30UA 5195 from Macon at the gate
11:40AA 1968 to Tucson leaves the gate
21 h 10 apart on the timetable, overnight
AA 1968 leaves 21 h 10 after UA 5195 arrives on the timetable: more than half a day, so not a connection we count.