DL 3802 then DL 533 at Seattle
Portland (Oregon) → Seattle → Detroit
Timetable, Seattle time
15:25DL 3802 from Portland (Oregon) at the gate
13:35DL 533 to Detroit leaves the gate
22 h 10 apart on the timetable, overnight
DL 533 leaves 22 h 10 after DL 3802 arrives on the timetable: more than half a day, so not a connection we count.