UA 4428 then AA 529 at O'Hare
Fargo → Chicago → Knoxville
Timetable, Chicago time
11:59UA 4428 from Fargo at the gate
10:36AA 529 to Knoxville leaves the gate
22 h 37 apart on the timetable, overnight
AA 529 leaves 22 h 37 after UA 4428 arrives on the timetable: more than half a day, so not a connection we count.