B6 134 then DL 675 at Boston
San Francisco → Boston → Kansas City
Timetable, Boston time
06:44B6 134 from San Francisco at the gate
06:10DL 675 to Kansas City leaves the gate
23 h 26 apart on the timetable, overnight
DL 675 leaves 23 h 26 after B6 134 arrives on the timetable: more than half a day, so not a connection we count.