B6 1534 then DL 2305 at Boston
San Francisco → Boston → Dallas-Fort Worth
Timetable, Boston time
06:44B6 1534 from San Francisco at the gate
19:30DL 2305 to Dallas-Fort Worth leaves the gate
12 h 46 apart on the timetable
DL 2305 leaves 12 h 46 after B6 1534 arrives on the timetable: more than half a day, so not a connection we count.