KE 71 then DL 3764 at Vancouver
Seoul → Vancouver → Seattle (SEA)
Timetable, Vancouver time
12:00KE 71 from Seoul at the gate
08:26DL 3764 to Seattle (SEA) leaves the gate
20 h 26 apart on the timetable, overnight
DL 3764 leaves 20 h 26 after KE 71 arrives on the timetable: more than half a day, so not a connection we count.