UA 5547 then AA 529 at O'Hare
Indianapolis → Chicago → Knoxville
Timetable, Chicago time
11:12UA 5547 from Indianapolis at the gate
10:36AA 529 to Knoxville leaves the gate
23 h 24 apart on the timetable, overnight
AA 529 leaves 23 h 24 after UA 5547 arrives on the timetable: more than half a day, so not a connection we count.