DL 1327 then B6 1534 at San Francisco
Detroit → San Francisco → Boston
Timetable, San Francisco time
23:02DL 1327 from Detroit at the gatealso VS 1751, WS 8609, AF 8808
22:10B6 1534 to Boston leaves the gatealso EY 8032
23 h 08 apart on the timetable, overnight
B6 1534 leaves 23 h 08 after DL 1327 arrives on the timetable: more than half a day, so not a connection we count.