AA 5894 then AA 6018 at Charlotte
Montgomery → Charlotte → Knoxville
Timetable, Charlotte time
09:35AA 5894 from Montgomery at the gate
09:10AA 6018 to Knoxville leaves the gate
23 h 35 apart on the timetable, overnight
AA 6018 leaves 23 h 35 after AA 5894 arrives on the timetable: more than half a day, so not a connection we count.