AA 1618 then UA 3018 at O'Hare
Dallas-Fort Worth → Chicago → Newark
Timetable, Chicago time
15:19AA 1618 from Dallas-Fort Worth at the gate
07:30UA 3018 to Newark leaves the gatealso UA 3910
16 h 11 apart on the timetable, overnight
UA 3018 leaves 16 h 11 after AA 1618 arrives on the timetable: more than half a day, so not a connection we count.