AA 5585 then AA 1155 at Charlotte
Louisville → Charlotte → Boston
Timetable, Charlotte time
19:21AA 5585 from Louisville at the gate
17:35AA 1155 to Boston leaves the gate
22 h 14 apart on the timetable, overnight
AA 1155 leaves 22 h 14 after AA 5585 arrives on the timetable: more than half a day, so not a connection we count.