UA 3922 then AA 537 at O'Hare
Tampa → Chicago → Hartford
Timetable, Chicago time
11:35UA 3922 from Tampa at the gate
08:20AA 537 to Hartford leaves the gate
20 h 45 apart on the timetable, overnight
AA 537 leaves 20 h 45 after UA 3922 arrives on the timetable: more than half a day, so not a connection we count.