F9 1439 then B6 1302 at Phoenix
Salt Lake City → Phoenix → Boston
Timetable, Phoenix time
00:18F9 1439 from Salt Lake City at the gate
23:59B6 1302 to Boston leaves the gate
23 h 41 apart on the timetable
B6 1302 leaves 23 h 41 after F9 1439 arrives on the timetable: more than half a day, so not a connection we count.