DL 5550 then DL 514 at Boston
Tallahassee → Boston → Phoenix
Timetable, Boston time
15:59DL 5550 from Tallahassee at the gate
08:35DL 514 to Phoenix leaves the gate
16 h 36 apart on the timetable, overnight
DL 514 leaves 16 h 36 after DL 5550 arrives on the timetable: more than half a day, so not a connection we count.