DL 860 then VA 8287 at San Francisco
Boston → San Francisco → Seattle
Timetable, San Francisco time
13:51DL 860 from Boston at the gatealso WS 7646
07:25VA 8287 to Seattle leaves the gate
17 h 34 apart on the timetable, overnight
VA 8287 leaves 17 h 34 after DL 860 arrives on the timetable: more than half a day, so not a connection we count.