B6 1488 then B6 1303 at Boston
Los Angeles → Boston → Phoenix
Timetable, Boston time
06:30B6 1488 from Los Angeles at the gate
18:45B6 1303 to Phoenix leaves the gate
12 h 15 apart on the timetable
B6 1303 leaves 12 h 15 after B6 1488 arrives on the timetable: more than half a day, so not a connection we count.