AA 4504 then AA 2975 at O'Hare
South Bend → Chicago → Minneapolis
Timetable, Chicago time
18:35AA 4504 from South Bend at the gate
13:15AA 2975 to Minneapolis leaves the gate
18 h 40 apart on the timetable, overnight
AA 2975 leaves 18 h 40 after AA 4504 arrives on the timetable: more than half a day, so not a connection we count.