MU 581 then DL 3764 at Vancouver
Shanghai → Vancouver → Seattle (SEA)
Timetable, Vancouver time
09:10MU 581 from Shanghai at the gate
08:26DL 3764 to Seattle (SEA) leaves the gate
23 h 16 apart on the timetable, overnight
DL 3764 leaves 23 h 16 after MU 581 arrives on the timetable: more than half a day, so not a connection we count.