AA 3308 then B6 845 at Boston
Philadelphia → Boston → Syracuse
Timetable, Boston time
09:04AA 3308 from Philadelphia at the gate
21:27B6 845 to Syracuse leaves the gate
12 h 23 apart on the timetable
B6 845 leaves 12 h 23 after AA 3308 arrives on the timetable: more than half a day, so not a connection we count.