AA 9867 then AA 3890 at O'Hare
Marquette → Chicago → Sioux Falls
Timetable, Chicago time
13:05AA 9867 from Marquette at the gate
12:26AA 3890 to Sioux Falls leaves the gate
23 h 21 apart on the timetable, overnight
AA 3890 leaves 23 h 21 after AA 9867 arrives on the timetable: more than half a day, so not a connection we count.