AA 2349 then DL 508 at Boston
Phoenix → Boston → Los Angeles
Timetable, Boston time
16:45AA 2349 from Phoenix at the gate
16:15DL 508 to Los Angeles leaves the gate
23 h 30 apart on the timetable, overnight
DL 508 leaves 23 h 30 after AA 2349 arrives on the timetable: more than half a day, so not a connection we count.