B6 833 then DL 363 at San Francisco
Boston → San Francisco → New York JFK
Timetable, San Francisco time
20:55B6 833 from Boston at the gatealso EY 8011
16:15DL 363 to New York JFK leaves the gatealso VS 3215, LA 6679
19 h 20 apart on the timetable, overnight
DL 363 leaves 19 h 20 after B6 833 arrives on the timetable: more than half a day, so not a connection we count.