AA 4057 then UA 3636 at O'Hare
Tulsa → Chicago → Knoxville
Timetable, Chicago time
08:29AA 4057 from Tulsa at the gate
07:07UA 3636 to Knoxville leaves the gate
22 h 38 apart on the timetable, overnight
UA 3636 leaves 22 h 38 after AA 4057 arrives on the timetable: more than half a day, so not a connection we count.