CZ 1646 then AS 630 at San Francisco
Charlotte → San Francisco → Seattle
Timetable, San Francisco time
17:33CZ 1646 from Charlotte at the gatealso AA 2569
15:08AS 630 to Seattle leaves the gatealso QR 2157, FJ 5822, BA 7543, AA 9399
21 h 35 apart on the timetable, overnight
AS 630 leaves 21 h 35 after CZ 1646 arrives on the timetable: more than half a day, so not a connection we count.