AA 1378 then DL 514 at Phoenix
Tampa → Phoenix → Boston
Timetable, Phoenix time
07:49AA 1378 from Tampa at the gate
23:23DL 514 to Boston leaves the gate
15 h 34 apart on the timetable
DL 514 leaves 15 h 34 after AA 1378 arrives on the timetable: more than half a day, so not a connection we count.