UA 3577 then AA 529 at O'Hare
Rochester (ROC) → Chicago → Knoxville
Timetable, Chicago time
14:29UA 3577 from Rochester (ROC) at the gate
10:36AA 529 to Knoxville leaves the gate
20 h 07 apart on the timetable, overnight
AA 529 leaves 20 h 07 after UA 3577 arrives on the timetable: more than half a day, so not a connection we count.