WS 1721 then DL 3764 at Vancouver
Palm Springs → Vancouver → Seattle (SEA)
Timetable, Vancouver time
15:10WS 1721 from Palm Springs at the gate
08:26DL 3764 to Seattle (SEA) leaves the gate
17 h 16 apart on the timetable, overnight
DL 3764 leaves 17 h 16 after WS 1721 arrives on the timetable: more than half a day, so not a connection we count.