TW 531 then DL 3764 at Vancouver
Seoul → Vancouver → Seattle (SEA)
Timetable, Vancouver time
14:45TW 531 from Seoul at the gate
08:26DL 3764 to Seattle (SEA) leaves the gate
17 h 41 apart on the timetable, overnight
DL 3764 leaves 17 h 41 after TW 531 arrives on the timetable: more than half a day, so not a connection we count.