AC 8599 then DL 3764 at Vancouver
Las Vegas → Vancouver → Seattle (SEA)
Timetable, Vancouver time
11:11AC 8599 from Las Vegas at the gate
08:26DL 3764 to Seattle (SEA) leaves the gate
21 h 15 apart on the timetable, overnight
DL 3764 leaves 21 h 15 after AC 8599 arrives on the timetable: more than half a day, so not a connection we count.