DL 1787 then AA 2414 at Dulles
Detroit → Washington → Dallas-Fort Worth
Timetable, Washington time
16:28DL 1787 from Detroit at the gate
14:42AA 2414 to Dallas-Fort Worth leaves the gate
22 h 14 apart on the timetable, overnight
AA 2414 leaves 22 h 14 after DL 1787 arrives on the timetable: more than half a day, so not a connection we count.