DL 5731 then AA 1148 at Boston
Pittsburgh → Boston → Dallas-Fort Worth
Timetable, Boston time
18:44DL 5731 from Pittsburgh at the gate
17:58AA 1148 to Dallas-Fort Worth leaves the gate
23 h 14 apart on the timetable, overnight
AA 1148 leaves 23 h 14 after DL 5731 arrives on the timetable: more than half a day, so not a connection we count.