AS 321 then DL 3820 at Seattle
Dallas-Fort Worth → Seattle → Portland (Oregon)
Timetable, Seattle time
18:12AS 321 from Dallas-Fort Worth at the gate
17:48DL 3820 to Portland (Oregon) leaves the gate
23 h 36 apart on the timetable, overnight
DL 3820 leaves 23 h 36 after AS 321 arrives on the timetable: more than half a day, so not a connection we count.