DL 3913 then AS 623 at Seattle
Portland (Oregon) → Seattle → San Diego
Timetable, Seattle time
20:50DL 3913 from Portland (Oregon) at the gate
19:46AS 623 to San Diego leaves the gate
22 h 56 apart on the timetable, overnight
AS 623 leaves 22 h 56 after DL 3913 arrives on the timetable: more than half a day, so not a connection we count.