UA 5892 then DL 1655 at San Francisco
Monterey → San Francisco → Boston
Timetable, San Francisco time
07:26UA 5892 from Monterey at the gate
21:58DL 1655 to Boston leaves the gatealso VS 2642, LA 6808
14 h 32 apart on the timetable
DL 1655 leaves 14 h 32 after UA 5892 arrives on the timetable: more than half a day, so not a connection we count.