UA 4717 then DL 507 at LAX
Monterey → Los Angeles → Boston
Timetable, Los Angeles time
08:33UA 4717 from Monterey at the gate
21:05DL 507 to Boston leaves the gate
12 h 32 apart on the timetable
DL 507 leaves 12 h 32 after UA 4717 arrives on the timetable: more than half a day, so not a connection we count.