AA 2612 then AA 5294 at O'Hare
Houston → Chicago → Knoxville
Timetable, Chicago time
20:10AA 2612 from Houston at the gate
20:00AA 5294 to Knoxville leaves the gate
23 h 50 apart on the timetable, overnight
AA 5294 leaves 23 h 50 after AA 2612 arrives on the timetable: more than half a day, so not a connection we count.