AA 3521 then DL 5630 at Charlotte
Valparaiso → Charlotte → Boston
Timetable, Charlotte time
15:37AA 3521 from Valparaiso at the gate
14:37DL 5630 to Boston leaves the gate
23 h apart on the timetable, overnight
DL 5630 leaves 23 h after AA 3521 arrives on the timetable: more than half a day, so not a connection we count.