Y8 7467 then AA 3597 at O'Hare
Indianapolis → Chicago → Huntsville
Timetable, Chicago time
08:54Y8 7467 from Indianapolis at the gate
22:45AA 3597 to Huntsville leaves the gate
13 h 51 apart on the timetable
AA 3597 leaves 13 h 51 after Y8 7467 arrives on the timetable: more than half a day, so not a connection we count.