AC 551 then DL 3764 at Vancouver
Los Angeles → Vancouver → Seattle (SEA)
Timetable, Vancouver time
11:18AC 551 from Los Angeles at the gate
08:26DL 3764 to Seattle (SEA) leaves the gate
21 h 08 apart on the timetable, overnight
DL 3764 leaves 21 h 08 after AC 551 arrives on the timetable: more than half a day, so not a connection we count.