UA 3922 then AA 9915 at O'Hare
Tampa → Chicago → Milwaukee
Timetable, Chicago time
11:35UA 3922 from Tampa at the gate
11:00AA 9915 to Milwaukee leaves the gate
23 h 25 apart on the timetable, overnight
AA 9915 leaves 23 h 25 after UA 3922 arrives on the timetable: more than half a day, so not a connection we count.