AA 2366 then AA 6002 at Charlotte
Denver → Charlotte → Huntsville
Timetable, Charlotte time
05:07AA 2366 from Denver at the gate
18:02AA 6002 to Huntsville leaves the gate
12 h 55 apart on the timetable
AA 6002 leaves 12 h 55 after AA 2366 arrives on the timetable: more than half a day, so not a connection we count.