DL 1716 then AA 391 at O'Hare
Detroit → Chicago → Dallas-Fort Worth
Timetable, Chicago time
13:59DL 1716 from Detroit at the gate
13:46AA 391 to Dallas-Fort Worth leaves the gate
23 h 47 apart on the timetable, overnight
AA 391 leaves 23 h 47 after DL 1716 arrives on the timetable: more than half a day, so not a connection we count.