UA 4757 then AA 529 at O'Hare
Appleton → Chicago → Knoxville
Timetable, Chicago time
11:27UA 4757 from Appleton at the gate
10:36AA 529 to Knoxville leaves the gate
23 h 09 apart on the timetable, overnight
AA 529 leaves 23 h 09 after UA 4757 arrives on the timetable: more than half a day, so not a connection we count.