AA 831 then AA 2281 at Miami
Washington National → Miami → South Bend
Timetable, Miami time
07:43AA 831 from Washington National at the gate
07:10AA 2281 to South Bend leaves the gate
23 h 27 apart on the timetable, overnight
AA 2281 leaves 23 h 27 after AA 831 arrives on the timetable: more than half a day, so not a connection we count.