Originally Posted by
BiggAW
... I'm also a little confused as to how there is a layover SLC-YVR, as that's a direct flight, unless the OP is coming from somewhere else in the US.
I interpreted "layover" as meaning OP is at XXX already, with a ticket from XXX to YVR perhaps tomorrow; passport verification for the international segment wouldn't happen until the day of that flight, so there was no flag at check-in for SLC-XXX earlier in the week
unless OP can route to YVR via SLC and arrange to collect the passport while between flights there (a real "layover" aka "connection"), OP is not going to be able to board the trans-border flight -- and may well have issues with the XXX-SLC segment