AA 3033 then UA 6060 at O'Hare
Atlanta → Chicago → Lancaster
Timetable, Chicago time
20:50AA 3033 from Atlanta at the gate
16:55UA 6060 to Lancaster leaves the gate
20 h 05 apart on the timetable, overnight
UA 6060 leaves 20 h 05 after AA 3033 arrives on the timetable: more than half a day, so not a connection we count.