AA 3131 then UA 5191 at O'Hare
Minneapolis → Chicago → Lancaster
Timetable, Chicago time
15:55AA 3131 from Minneapolis at the gate
08:50UA 5191 to Lancaster leaves the gate
16 h 55 apart on the timetable, overnight
UA 5191 leaves 16 h 55 after AA 3131 arrives on the timetable: more than half a day, so not a connection we count.