AA 4919 then UA 3018 at O'Hare
Milwaukee → Chicago → Newark
Timetable, Chicago time
12:54AA 4919 from Milwaukee at the gate
07:30UA 3018 to Newark leaves the gatealso UA 3910
18 h 36 apart on the timetable, overnight
UA 3018 leaves 18 h 36 after AA 4919 arrives on the timetable: more than half a day, so not a connection we count.