AA 5104 then AA 5370 at Charlotte
South Bend → Charlotte → Des Moines
Timetable, Charlotte time
09:34AA 5104 from South Bend at the gate
08:40AA 5370 to Des Moines leaves the gate
23 h 06 apart on the timetable, overnight
AA 5370 leaves 23 h 06 after AA 5104 arrives on the timetable: more than half a day, so not a connection we count.