UA 1970 then AS 630 at San Francisco
Cleveland → San Francisco → Seattle
Timetable, San Francisco time
21:45UA 1970 from Cleveland at the gatealso VA 8489, NZ 9046, OZ 9526
15:08AS 630 to Seattle leaves the gatealso QR 2157, FJ 5822, AA 9399
17 h 23 apart on the timetable, overnight
AS 630 leaves 17 h 23 after UA 1970 arrives on the timetable: more than half a day, so not a connection we count.