UA 648 then AV 2036 at San Francisco
Newark → San Francisco → Seattle
Timetable, San Francisco time
09:30UA 648 from Newark at the gatealso VA 8516, NZ 9121
07:25AV 2036 to Seattle leaves the gate
21 h 55 apart on the timetable, overnight
AV 2036 leaves 21 h 55 after UA 648 arrives on the timetable: more than half a day, so not a connection we count.