AA 4097 then AA 537 at O'Hare
Cincinnati Northern Kentucky → Chicago → Hartford
Timetable, Chicago time
11:10AA 4097 from Cincinnati Northern Kentucky at the gate
08:10AA 537 to Hartford leaves the gate
21 h apart on the timetable, overnight
AA 537 leaves 21 h after AA 4097 arrives on the timetable: more than half a day, so not a connection we count.