DL 1697 then B6 2459 at Boston
Phoenix → Boston → Philadelphia
Timetable, Boston time
21:00DL 1697 from Phoenix at the gate
15:33B6 2459 to Philadelphia leaves the gate
18 h 33 apart on the timetable, overnight
B6 2459 leaves 18 h 33 after DL 1697 arrives on the timetable: more than half a day, so not a connection we count.