B6 333 then QR 3391 at San Francisco
Boston → San Francisco → Everett
Timetable, San Francisco time
00:25B6 333 from Boston at the gatealso FI 7897, EY 8015, EY 8328
15:20QR 3391 to Everett leaves the gate
14 h 55 apart on the timetable
QR 3391 leaves 14 h 55 after B6 333 arrives on the timetable: more than half a day, so not a connection we count.