DL 652 then DL 691 at Atlanta
Seattle → Atlanta → Portland (Oregon)
Timetable, Atlanta time
07:32DL 652 from Seattle at the gate
19:35DL 691 to Portland (Oregon) leaves the gate
12 h 03 apart on the timetable
DL 691 leaves 12 h 03 after DL 652 arrives on the timetable: more than half a day, so not a connection we count.