UA 5807 then AA 529 at O'Hare
Lexington → Chicago → Knoxville
Timetable, Chicago time
11:54UA 5807 from Lexington at the gate
10:36AA 529 to Knoxville leaves the gate
22 h 42 apart on the timetable, overnight
AA 529 leaves 22 h 42 after UA 5807 arrives on the timetable: more than half a day, so not a connection we count.