AA 6019 then AA 1840 at Charlotte
Mobile → Charlotte → Houston
Timetable, Charlotte time
21:10AA 6019 from Mobile at the gate
20:40AA 1840 to Houston leaves the gate
23 h 30 apart on the timetable, overnight
AA 1840 leaves 23 h 30 after AA 6019 arrives on the timetable: more than half a day, so not a connection we count.