DL 514 then AA 6446 at Phoenix
Boston → Phoenix → Burbank
Timetable, Phoenix time
21:53DL 514 from Boston at the gate
14:31AA 6446 to Burbank leaves the gate
16 h 38 apart on the timetable, overnight
AA 6446 leaves 16 h 38 after DL 514 arrives on the timetable: more than half a day, so not a connection we count.