UA 2171 then VA 8287 at San Francisco
Newark → San Francisco → Seattle
Timetable, San Francisco time
21:21UA 2171 from Newark at the gatealso VA 8515, NZ 9129
21:05VA 8287 to Seattle leaves the gate
23 h 44 apart on the timetable, overnight
VA 8287 leaves 23 h 44 after UA 2171 arrives on the timetable: more than half a day, so not a connection we count.