B6 386 then DL 1439 at Boston
Pittsburgh → Boston → Tampa
Timetable, Boston time
14:31B6 386 from Pittsburgh at the gate
13:20DL 1439 to Tampa leaves the gate
22 h 49 apart on the timetable, overnight
DL 1439 leaves 22 h 49 after B6 386 arrives on the timetable: more than half a day, so not a connection we count.