UA 4413 then AA 529 at O'Hare
Madison → Chicago → Knoxville
Timetable, Chicago time
11:57UA 4413 from Madison at the gate
10:36AA 529 to Knoxville leaves the gate
22 h 39 apart on the timetable, overnight
AA 529 leaves 22 h 39 after UA 4413 arrives on the timetable: more than half a day, so not a connection we count.