DL 514 then AA 2531 at Phoenix
Boston → Phoenix → Dallas-Fort Worth
Timetable, Phoenix time
21:53DL 514 from Boston at the gate
13:20AA 2531 to Dallas-Fort Worth leaves the gate
15 h 27 apart on the timetable, overnight
AA 2531 leaves 15 h 27 after DL 514 arrives on the timetable: more than half a day, so not a connection we count.