AS 495 then DL 3997 at Seattle
Los Angeles → Seattle → Portland (Oregon)
Timetable, Seattle time
08:54AS 495 from Los Angeles at the gate
20:58DL 3997 to Portland (Oregon) leaves the gate
12 h 04 apart on the timetable
DL 3997 leaves 12 h 04 after AS 495 arrives on the timetable: more than half a day, so not a connection we count.