AA 5307 then DL 5626 at Charlotte
Louisville → Charlotte → Boston
Timetable, Charlotte time
11:28AA 5307 from Louisville at the gate
09:50DL 5626 to Boston leaves the gate
22 h 22 apart on the timetable, overnight
DL 5626 leaves 22 h 22 after AA 5307 arrives on the timetable: more than half a day, so not a connection we count.