AA 3311 then AA 5318 at Charlotte
Detroit → Charlotte → Lexington
Timetable, Charlotte time
20:21AA 3311 from Detroit at the gate
19:28AA 5318 to Lexington leaves the gate
23 h 07 apart on the timetable, overnight
AA 5318 leaves 23 h 07 after AA 3311 arrives on the timetable: more than half a day, so not a connection we count.