DL 1447 then DL 514 at Phoenix
Salt Lake City → Phoenix → Boston
Timetable, Phoenix time
09:34DL 1447 from Salt Lake City at the gate
23:23DL 514 to Boston leaves the gate
13 h 49 apart on the timetable
DL 514 leaves 13 h 49 after DL 1447 arrives on the timetable: more than half a day, so not a connection we count.