DL 442 then TP 4392 at San Francisco
Detroit → San Francisco → Boston
Timetable, San Francisco time
18:17DL 442 from Detroit at the gatealso KL 6917, WS 8595
10:44TP 4392 to Boston leaves the gate
16 h 27 apart on the timetable, overnight
TP 4392 leaves 16 h 27 after DL 442 arrives on the timetable: more than half a day, so not a connection we count.