AA 1121 then DL 5630 at Charlotte
Los Angeles → Charlotte → Boston
Timetable, Charlotte time
15:44AA 1121 from Los Angeles at the gate
14:37DL 5630 to Boston leaves the gate
22 h 53 apart on the timetable, overnight
DL 5630 leaves 22 h 53 after AA 1121 arrives on the timetable: more than half a day, so not a connection we count.