AA 3322 then UA 5191 at O'Hare
Houston → Chicago → Lancaster
Timetable, Chicago time
17:30AA 3322 from Houston at the gate
08:50UA 5191 to Lancaster leaves the gate
15 h 20 apart on the timetable, overnight
UA 5191 leaves 15 h 20 after AA 3322 arrives on the timetable: more than half a day, so not a connection we count.