DL 3913 then AS 2239 at Seattle
Portland (Oregon) → Seattle → Portland (Oregon)
Timetable, Seattle time
20:50DL 3913 from Portland (Oregon) at the gate
19:54AS 2239 to Portland (Oregon) leaves the gate
23 h 04 apart on the timetable, overnight
AS 2239 leaves 23 h 04 after DL 3913 arrives on the timetable: more than half a day, so not a connection we count.