DL 3968 then AS 3461 at Seattle
Vancouver → Seattle → Portland (Oregon)
Timetable, Seattle time
16:53DL 3968 from Vancouver at the gate
14:05AS 3461 to Portland (Oregon) leaves the gate
21 h 12 apart on the timetable, overnight
AS 3461 leaves 21 h 12 after DL 3968 arrives on the timetable: more than half a day, so not a connection we count.