AA 4454 then AA 4434 at O'Hare
Indianapolis → Chicago → Madison
Timetable, Chicago time
06:00AA 4454 from Indianapolis at the gate
22:30AA 4434 to Madison leaves the gate
16 h 30 apart on the timetable
AA 4434 leaves 16 h 30 after AA 4454 arrives on the timetable: more than half a day, so not a connection we count.