AA 1619 then AA 2640 at Charlotte
Kansas City → Charlotte → Austin
Timetable, Charlotte time
14:16AA 1619 from Kansas City at the gate
14:15AA 2640 to Austin leaves the gate
23 h 59 apart on the timetable, overnight
AA 2640 leaves 23 h 59 after AA 1619 arrives on the timetable: more than half a day, so not a connection we count.