AA 2710 then UA 5191 at O'Hare
Phoenix → Chicago → Lancaster
Timetable, Chicago time
16:09AA 2710 from Phoenix at the gate
08:50UA 5191 to Lancaster leaves the gate
16 h 41 apart on the timetable, overnight
UA 5191 leaves 16 h 41 after AA 2710 arrives on the timetable: more than half a day, so not a connection we count.