DL 3913 then AA 2073 at Seattle
Portland (Oregon) → Seattle → Phoenix
Timetable, Seattle time
20:50DL 3913 from Portland (Oregon) at the gate
15:00AA 2073 to Phoenix leaves the gate
18 h 10 apart on the timetable, overnight
AA 2073 leaves 18 h 10 after DL 3913 arrives on the timetable: more than half a day, so not a connection we count.