AA 3739 then UA 3018 at O'Hare
Omaha → Chicago → Newark
Timetable, Chicago time
14:12AA 3739 from Omaha at the gate
07:30UA 3018 to Newark leaves the gatealso UA 3910
17 h 18 apart on the timetable, overnight
UA 3018 leaves 17 h 18 after AA 3739 arrives on the timetable: more than half a day, so not a connection we count.