DL 514 then AA 6297 at Phoenix
Boston → Phoenix → Flagstaff
Timetable, Phoenix time
21:53DL 514 from Boston at the gate
17:35AA 6297 to Flagstaff leaves the gate
19 h 42 apart on the timetable, overnight
AA 6297 leaves 19 h 42 after DL 514 arrives on the timetable: more than half a day, so not a connection we count.