UA 3922 then AA 320 at O'Hare
Tampa → Chicago → Philadelphia
Timetable, Chicago time
11:35UA 3922 from Tampa at the gate
08:30AA 320 to Philadelphia leaves the gate
20 h 55 apart on the timetable, overnight
AA 320 leaves 20 h 55 after UA 3922 arrives on the timetable: more than half a day, so not a connection we count.