AA 5104 then AA 2776 at Charlotte
South Bend → Charlotte → Boston
Timetable, Charlotte time
09:34AA 5104 from South Bend at the gate
08:55AA 2776 to Boston leaves the gate
23 h 21 apart on the timetable, overnight
AA 2776 leaves 23 h 21 after AA 5104 arrives on the timetable: more than half a day, so not a connection we count.