AS 499 then DL 560 at Seattle
Portland (Oregon) → Seattle → Atlanta
Timetable, Seattle time
07:10AS 499 from Portland (Oregon) at the gate
23:40DL 560 to Atlanta leaves the gate
16 h 30 apart on the timetable
DL 560 leaves 16 h 30 after AS 499 arrives on the timetable: more than half a day, so not a connection we count.