DL 3802 then AC 8807 at Seattle
Portland (Oregon) → Seattle → Vancouver
Timetable, Seattle time
15:25DL 3802 from Portland (Oregon) at the gate
15:15AC 8807 to Vancouver leaves the gate
23 h 50 apart on the timetable, overnight
AC 8807 leaves 23 h 50 after DL 3802 arrives on the timetable: more than half a day, so not a connection we count.