AA 2989 then AA 5604 at Charlotte
Austin → Charlotte → Springfield
Timetable, Charlotte time
11:52AA 2989 from Austin at the gate
11:35AA 5604 to Springfield leaves the gate
23 h 43 apart on the timetable, overnight
AA 5604 leaves 23 h 43 after AA 2989 arrives on the timetable: more than half a day, so not a connection we count.