AA 5585 then AA 3294 at Charlotte
Louisville → Charlotte → Boston
Timetable, Charlotte time
20:41AA 5585 from Louisville at the gate
16:55AA 3294 to Boston leaves the gate
20 h 14 apart on the timetable, overnight
AA 3294 leaves 20 h 14 after AA 5585 arrives on the timetable: more than half a day, so not a connection we count.